Make resource, resmap public.

api/resmap/patchfactory.go

@@ -0,0 +1,15 @@
+/// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package patch holds miscellaneous interfaces used by kustomize.
+package resmap
+
+import (
+	"sigs.k8s.io/kustomize/v3/api/resource"
+)
+
+// PatchFactory makes transformers that require k8sdeps.
+type PatchFactory interface {
+	MergePatches(patches []*resource.Resource,
+		rf *resource.Factory) (ResMap, error)
+}