optimize query, fix for no cadvisor relabels

[AjayTripathy]

What does this PR change?

Neglected to migrate the container_network* queries to new cadvisor data. Also, filtering for "POD" clears a significant amount of data

Does this PR rely on any other PRs?

No

How does this PR impact users? (This is the kind of thing that goes in release notes!)

Minor query optimization, supports users not using the default cadvisor relabel rules better.

Links to Issues or ZD tickets this PR addresses or fixes

Perhaps ZD #608? Unclear.

How was this PR tested?

On a cluster without relabel rules:
Previous Version:

        "name": "cost-model",
        "properties": {
          "cluster": "cluster-one",
          "node": "gke-standard-cluster-1-spotpool-b4a02c44-bov0",
          "container": "cost-model",
          "controller": "cost-model",
          "controllerKind": "deployment",
          "namespace": "cost-model",
          "pod": "cost-model-69bddb5545-krz4b",
          "providerID": "gke-standard-cluster-1-spotpool-b4a02c44-bov0"
        },
        "window": {
          "start": "2021-08-24T00:00:00Z",
          "end": "2021-08-25T01:00:00Z"
        },
        "start": "2021-08-24T22:12:00Z",
        "end": "2021-08-25T00:16:00Z",
        "minutes": 124.000000,
        "cpuCores": 0.010000,
        "cpuCoreRequestAverage": 0.010000,
        "cpuCoreUsageAverage": 0.000159,
        "cpuCoreHours": 0.020667,
        "cpuCost": 0.000138,
        "cpuCostAdjustment": 0.000000,
        "cpuEfficiency": 0.015859,
        "gpuCount": 0.000000,
        "gpuHours": 0.000000,
        "gpuCost": 0.000000,
        "gpuCostAdjustment": 0.000000,
        "networkTransferBytes": 0.000000,
        "networkReceiveBytes": 0.000000,
        "networkCost": 0.000000,
        "networkCostAdjustment": 0.000000,
        "loadBalancerCost": 0.000000,
        "loadBalancerCostAdjustment": 0.000000,
        "pvBytes": 0.000000,
        "pvByteHours": 0.000000,
        "pvCost": 0.000000,
        "pvs": null,

Current Version

      "cost-model": {
        "name": "cost-model",
        "properties": {
          "cluster": "cluster-one",
          "node": "gke-standard-cluster-1-spotpool-b4a02c44-bov0",
          "container": "cost-model",
          "controller": "cost-model",
          "controllerKind": "deployment",
          "namespace": "cost-model",
          "pod": "cost-model-69bddb5545-krz4b",
          "services": [
            "cost-model"
          ],
          "providerID": "gke-standard-cluster-1-spotpool-b4a02c44-bov0",
          "labels": {
            "app": "cost-model",
            "pod_template_hash": "69bddb5545"
          }
        },
        "window": {
          "start": "2021-08-24T00:00:00Z",
          "end": "2021-08-25T00:00:00Z"
        },
        "start": "2021-08-24T22:12:00Z",
        "end": "2021-08-24T23:59:00Z",
        "minutes": 107.000000,
        "cpuCores": 0.010000,
        "cpuCoreRequestAverage": 0.010000,
        "cpuCoreUsageAverage": 0.000061,
        "cpuCoreHours": 0.017833,
        "cpuCost": 0.000119,
        "cpuCostAdjustment": 0.000000,
        "cpuEfficiency": 0.006081,
        "gpuCount": 0.000000,
        "gpuHours": 0.000000,
        "gpuCost": 0.000000,
        "gpuCostAdjustment": 0.000000,
        "networkTransferBytes": 180851.731869,
        "networkReceiveBytes": 9777082.354739,

[mbolt35]

LGTM