VOL-4925 - Build and release components.

go.mod
go.sum
------
  o Bump voltha-protos version string to 5.3.8.

makefiles/include.mk
makefiles/lint/include.mk
makefiles/lint/makefile.mk
makefiles/lint/shell.mk
makefiles/lint/yaml/yamllint.mk
-------------------------------
  o Added support for make library lint targets.
  o Move help target text from Makefile into makefiles/help.mk.

Change-Id: I6e54f47cb38c8946330bb3d40d2354a54a7c9a0c
diff --git a/makefiles/help.mk b/makefiles/help.mk
new file mode 100644
index 0000000..f62f064
--- /dev/null
+++ b/makefiles/help.mk
@@ -0,0 +1,41 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors (ONF) and the ONF Contributors
+#
+# 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.
+# -----------------------------------------------------------------------
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+.PHONY: help
+help ::
+	@echo "Usage: $(MAKE) [options] [target] ..."
+	@echo
+	@echo "  build                : Build the library"
+	@echo "  mod-update           : Update go.mod and the vendor directory"
+	@echo "  test                 : Generate reports for all go tests"
+	@echo "  local-protos         : Local development target"
+ifdef VERBOSE
+	@echo "   LOCAL_PROTOS="
+endif
+	@echo
+	@echo "[CLEAN]"
+	@echo "  clean                : Remove files created by the build"
+	@echo "  distclean            : Remove build and testing artifacts and reports"
+	@echo
+	@echo "[LINT]"
+	@echo "  lint                 : Shorthand for lint-style & lint-sanity"
+	@echo "  lint-mod             : Verify the integrity of the 'mod' files"
+	@echo "  sca                  : "
+
+# [EOF]