Convert inventory transformer to plugin, reduce k8sdeps.

pkg/accumulator/resaccumulator.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
 
 package accumulator
 
@@ -29,7 +16,8 @@ import (
 )
 
 // ResAccumulator accumulates resources and the rules
-// used to customize those resources.
+// used to customize those resources.  It's a ResMap
+// plus stuff needed to modify the ResMap.
 type ResAccumulator struct {
 	resMap  resmap.ResMap
 	tConfig *config.TransformerConfig