Add Pod initContainer to var reference

Author: yujunz

pkg/transformers/config/defaultconfig/varreference.go

@@ -100,6 +100,15 @@ varReference:
 - path: spec/containers/env/value
   kind: Pod
 
+- path: spec/initContainers/command
+  kind: Pod
+
+- path: spec/initContainers/args
+  kind: Pod
+
+- path: spec/initContainers/env/value
+  kind: Pod
+
 - path: spec/rules/host
   kind: Ingress