[new component] add apache pulsar receiver support

[tjiuming]

The purpose and use-cases of the new component

Pulsar receiver receives logs, metrics, and traces from Pulsar.

Supported pipeline types: logs, metrics, traces

Example configuration for the component

receivers:
  pulsar:
    service_url: pulsar://localhost:6650
    topic: otlp-spans
    subscription: otlp_spans_sub
    consumer_name: otlp_spans_sub_1
    encoding: otlp_proto
    auth_name: tls
    auth_param: '{"tlsCertFile":"cert.pem","tlsKeyFile":"key.pem"}'
    insecure: false
    tls_trust_certs_file_path: ca.pem

Telemetry data types supported

Supported pipeline types: logs, metrics, traces

[dmitryax]

I can sponsor this component

[tjiuming]

@dmitryax Thanks, what do I need to do ?

[github-actions]

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[atoulme]

Closing as completed, thanks!