Verify non-GKE resources map to k8s_* monitored resources #258
Description
From GoogleCloudPlatform/opentelemetry-operations-go#627, verify that kubernetes resources do not require cloud.platform: gcp_kubernetes_engine to map to k8s Monitored Resources (k8s_container, k8s_pod, etc).
Go exporter/collector fix in GoogleCloudPlatform/opentelemetry-operations-go#683 uses k8s.cluster.name resource attribute to identify a k8s resource. Other languages should be consistent with this.