feat(permissions): Adding node as a resource in RBAC (#193)

Signed-off-by: shubhamchaudhary <shubham.chaudhary@mayadata.io>

charts/generic/pod-network-loss/rbac.yaml

@@ -17,6 +17,9 @@ rules:
 - apiGroups: ["","litmuschaos.io","batch"]
   resources: ["pods","jobs","events","pods/log","chaosengines","chaosexperiments","chaosresults"]
   verbs: ["create","list","get","patch","update","delete"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get","list"]
 ---
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: RoleBinding