Add ability to collect pod labels to Kubernetes input (#6764)

plugins/inputs/kubernetes/kubernetes_pods.go

@@ -0,0 +1,17 @@
+package kubernetes
+
+type Pods struct {
+	Kind       string `json:"kind"`
+	ApiVersion string `json:"apiVersion"`
+	Items      []Item `json:"items"`
+}
+
+type Item struct {
+	Metadata Metadata `json:"metadata"`
+}
+
+type Metadata struct {
+	Name      string            `json:"name"`
+	Namespace string            `json:"namespace"`
+	Labels    map[string]string `json:"labels"`
+}