[VOL-5026] (pre-)Build and deploy repo:voltha-go

Makefile
config.mk
makefiles/
makefiles/consts.mk
makefiles/include.mk
--------------------
  o Includee the latest onf-make library makefiles.
  o Define standard lint targets and docker arguments.
  o Behavior configured through config.mk in the sandbox root.

Change-Id: I2bbb74109d020ed12736bae0c35360bddf2cbe7f
diff --git a/makefiles/lint/shell.mk b/makefiles/lint/shell.mk
new file mode 100644
index 0000000..a02da31
--- /dev/null
+++ b/makefiles/lint/shell.mk
@@ -0,0 +1,65 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (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.
+# -----------------------------------------------------------------------
+# https://gerrit.opencord.org/plugins/gitiles/onf-make
+# ONF.makefile.version = 1.0
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+# Gather sources to check
+# TODO: implement deps, only check modified files
+shell-check-find := find .
+# vendor scripts but they really should be lintable
+shell-check-find += -name 'vendor' -prune
+shell-check-find += -o \( -name '*.sh' \)
+shell-check-find += -type f -print0
+
+# shell-check    := $(env-clean) pylint
+shell-check      := shellcheck
+
+shell-check-args += --check-sourced
+shell-check-args += --extenal-sources
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+ifndef NO-LINT-SHELL
+  lint : lint-shell
+endif
+
+## -----------------------------------------------------------------------
+## Intent: Perform a lint check on command line script sources
+## -----------------------------------------------------------------------
+lint-shell:
+	$(shell-check) -V
+	@echo
+	$(HIDE)$(env-clean) $(shell-check-find) \
+	    | $(xargs-n1) $(shell-check) $(shell-check-args)
+
+## -----------------------------------------------------------------------
+## Intent: Display command help
+## -----------------------------------------------------------------------
+help-summary ::
+	@echo '  lint-shell          Syntax check shell sources'
+
+# [SEE ALSO]
+# -----------------------------------------------------------------------
+#   o https://www.shellcheck.net/wiki/Directive
+
+# [EOF]