Support exporting quantile for summary metrics

[khanhntd]

Description:
As OTEL summary metrics will get exported as a Statistical Set with awsemfexporter, customers will lose the information for each quantile and this would be more critical if receiver does not set Min and Max with Summary Metric (result in setting Statistical Set will have Min and Max at 0). Therefore, by turning on DetailedMetrics, customers can have detailed information regarding each quantile (the DetailedMetrics config option would allow the same with Histogram Metric since its exported as Statistical Set too)

Testing:
By applying these changes, I have test by:

• Update the unit test and running with go test

ok      github.com/open-telemetry/opentelemetry-collector-contrib/exporter/awsemfexporter       1.020s

• Manual testing with the following config

exporters:
    awsemf/prometheus:
        dimension_rollup_option: NoDimensionRollup
        eks_fargate_container_insights_enabled: false
        endpoint: ""
        local_mode: false
        log_group_name: Detailed-Prometheus-On
        log_stream_name: '{job}'
        max_retries: 2
        metric_declarations:
            - dimensions:
                - - key1
                  - quantile                  
              label_matchers:
                - label_names:
                    - job
                  regex: MY_JOB
                  separator: ;
              metric_name_selectors:
                - ^go_gc_duration_seconds$
        metric_descriptors: []
        detailed_metrics: true
        namespace: CWAgent-Internal
        no_verify_ssl: false
        num_workers: 8
        output_destination: cloudwatch
        parse_json_encoded_attr_values: []
        proxy_address: ""
        region: ""
        request_timeout_seconds: 30
        resource_arn: ""
        resource_to_telemetry_conversion:
            enabled: true
        role_arn: ""
extensions: {}
processors:
    batch/prometheus:
        send_batch_max_size: 0
        send_batch_size: 8192
        timeout: 200ms
    metricstransform/prometheus:
        transforms: []
    resource/prometheus:
        attributes:
            - action: upsert
              converted_type: ""
              from_attribute: service.name
              from_context: ""
              key: job
              pattern: ""
              value: null
            - action: delete
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: service.name
              pattern: ""
              value: null
            - action: upsert
              converted_type: ""
              from_attribute: service.instance.id
              from_context: ""
              key: instance
              pattern: ""
              value: null
            - action: delete
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: service.instance.id
              pattern: ""
              value: null
            - action: delete
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: net.host.port
              pattern: ""
              value: null
            - action: delete
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: http.scheme
              pattern: ""
              value: null
            - action: insert
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: Version
              pattern: ""
              value: 1
            - action: insert
              converted_type: ""
              from_attribute: ""
              from_context: ""
              key: receiver
              pattern: ""
              value: prometheus
receivers:
    prometheus/prometheus:
        buffer_count: 0
        buffer_period: 0s
        config:
            global:
                evaluation_interval: 1m
                scrape_interval: 1m
                scrape_timeout: 10s
            scrape_configs:
                - enable_http2: true
                  file_sd_configs:
                    - files:
                        - /home/ec2-user/prometheus_sd_1.yaml
                      refresh_interval: 5m
                  follow_redirects: true
                  honor_timestamps: true
                  job_name: MY_JOB
                  metrics_path: /metrics
                  sample_limit: 10000
                  scheme: http
                  scrape_interval: 1m
                  scrape_timeout: 10s
        start_time_metric_regex: ""
        target_allocator: null
        use_start_time_metric: false
service:
    extensions: []
    pipelines:
        metrics/prometheus:
            exporters:
                - awsemf/prometheus
            processors:
                - batch/prometheus
                - resource/prometheus
                - metricstransform/prometheus
            receivers:
                - prometheus/prometheus
    telemetry:
        logs:
            development: false
            disable_caller: false
            disable_stacktrace: false
            encoding: json
            error_output_paths: []
            initial_fields: {}
            level: info
            output_paths: []
        metrics:
            address: ""
            level: none
        resource: {}
        traces:
            propagators: []

and the result is (generate 6 different logs event) - with quantile changing between 0, 0.25, 0.5, 0.75 and 1 and with count and sum logs event

{
    "Version": "1",
    "_aws": {
        "CloudWatchMetrics": [
            {
                "Namespace": "CWAgent-Internal",
                "Dimensions": [
                    [
                        "key1",
                        "quantile"
                    ]
                ],
                "Metrics": [
                    {
                        "Name": "go_gc_duration_seconds"
                    }
                ]
            }
        ],
        "Timestamp": 1672102208350
    },
    "go_gc_duration_seconds": 0.00058318,
    "instance": "127.0.0.1:8000",
    "job": "MY_JOB",
    "key1": "value1",
    "key2": "value2",
    "prom_metric_type": "summary",
    "quantile": "1",
    "receiver": "prometheus"
}

{
    "Version": "1",
    "go_gc_duration_seconds_count": 1,
    "go_gc_duration_seconds_sum": 0.0000597010000000231,
    "instance": "127.0.0.1:8000",
    "job": "MY_JOB",
    "key1": "value1",
    "key2": "value2",
    "prom_metric_type": "summary",
    "receiver": "prometheus"
}

Before apply the changes, the summary metrics will have the following Embedded Metric Format(EMF)

 {
    "Version": "1",
    "_aws": {
        "CloudWatchMetrics": [
            {
                "Namespace": "CWAgent-Internal",
                "Dimensions": [
                    [
                        "key1"
                    ]
                ],
                "Metrics": [
                    {
                        "Name": "go_gc_duration_seconds"
                    }
                ]
            }
        ],
        "Timestamp": 1672101428349
    },
    "go_gc_duration_seconds": {
        "Max": 0.00058318,
        "Min": 0.000033009,
        "Count": 0,
        "Sum": 0
    },
    "instance": "127.0.0.1:8000",
    "job": "MY_JOB",
    "key1": "value1",
    "key2": "value2",
    "prom_metric_type": "summary",
    "receiver": "prometheus"
}

Documentation:

[github-actions]

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