Add golang makefile library targets for 'go mod'

makefiles/include.mk
makefiles/golang/include.mk
makefiles/golang/mod-update.mk
------------------------------
  o Added target mod-tidy   to invoke 'go mod tidy'   w/output banner.
  o Added target mod-vendor to invoke 'go mod vendor' w/output banner.
  o Added helper target mod-update to invoke mod-tidy and mod-vendor.
  o Targets help-summary (~help) and mod-update-help document use.
  o Dev mode flag LOCAL_FIX_PERMS=1 can be added to correct problems
    when docker mount is unaware of user uid/gid.

makefiles/targets/sterile.mk
----------------------------
  o Corrected a comment typo.
    + Amusing when this checkin message also requires a "correction".

Change-Id: Ia50c43a7b7bab4340a5390956cccd857a938c8c9
diff --git a/makefiles/golang/include.mk b/makefiles/golang/include.mk
new file mode 100644
index 0000000..7ce9b66
--- /dev/null
+++ b/makefiles/golang/include.mk
@@ -0,0 +1,26 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2023-2024 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.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2024 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+# https://gerrit.opencord.org/plugins/gitiles/onf-make
+# ONF.makefiles.include.version = 1.1
+# -----------------------------------------------------------------------
+
+include $(ONF_MAKEDIR)/golang/mod-update.mk
+
+# [EOF]