Kubernetes integration v2.7.0

Added

• Integration now reports node status and conditions as condition.{Name} (for example condition.Ready, condition.PIDPressure).
• Added the new KubeStateMetricsNamespace parameter to restrict discovery of KSM pod to a particular namespace.
  • This should help reduce load in the control plane for clusters with many pods and/or nodes.
• Added the unschedulable metric to K8sNodeSamples.
• Added the podIP metric to K8sPodSample.