Import k8s client deps, support inject k8s API server config

Change-Id: Iaf246a06462b8a878e93ef3f98da399c3600b129
diff --git a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/DefaultK8sNode.java b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/DefaultK8sNode.java
index 5f22f70..76b845c 100644
--- a/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/DefaultK8sNode.java
+++ b/apps/k8s-node/api/src/main/java/org/onosproject/k8snode/api/DefaultK8sNode.java
@@ -59,7 +59,8 @@
      * @param state             node state
      */
     protected DefaultK8sNode(String hostname, Type type, DeviceId intgBridge,
-                             IpAddress managementIp, IpAddress dataIp, K8sNodeState state) {
+                             IpAddress managementIp, IpAddress dataIp,
+                             K8sNodeState state) {
         this.hostname = hostname;
         this.type = type;
         this.intgBridge = intgBridge;
@@ -222,6 +223,7 @@
         private IpAddress managementIp;
         private IpAddress dataIp;
         private K8sNodeState state;
+        private K8sApiConfig apiConfig;
 
         // private constructor not intended to use from external
         private Builder() {