VOL-4857 - docker bbsim timeout debugging

makefiles/help.mk
-----------------
   o Makefile growing large, refactor help targets into makefiles/help.mk.
   o Added a new target 'HELP' for documenting all supported targets.

Makefile
--------
   o Debugging: display docker ps to verify images loaded OK.

Makefile
--------
   o Update copyright.
   o Add .DEFAULT_GOAL near the top for self-documentation.
   o Dynamic includes added so help logic can load on demand.
   o Cosmetic cleanups, source reformatting.
   o Define local var bbsim-tag= to help shorten long lines.
   o Replace inlined rm and make commands with make builtins $(RM) and $(MAKE).
   o Refactor docker-run* targets, lines differ by a single switch.
   o help target - use "echo -e" to enable color display for BBSim documentation banner.
   o GO_SH macro contains an unmatched quote char:
     + legtrap: dangling quote closed when target rules are written.
     + Added a silly commented closing quote so editor colorization can function.

Change-Id: I1795bc24fed43cadc593861dcdb4f6399679ff1c
diff --git a/makefiles/help.mk b/makefiles/help.mk
new file mode 100644
index 0000000..c6d4108
--- /dev/null
+++ b/makefiles/help.mk
@@ -0,0 +1,66 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022 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.
+# -----------------------------------------------------------------------
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+.PHONY: help
+help :: # @HELP Print the command options
+	@echo
+	@echo -e "\033[0;31m    BroadBand Simulator (BBSim) \033[0m"
+	@echo
+	@echo Emulates the control plane of an openolt compatible device
+	@echo Useful for development and scale testing
+	@echo
+	@grep -E '^.*: .* *# *@HELP' $(MAKEFILE_LIST) \
+    | sort \
+    | awk ' \
+        BEGIN {FS = ": .* *# *@HELP"}; \
+        {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}; \
+    '
+
+.PHONY: HELP
+HELP: # @HELP Display extended makefile target help
+	@echo "Usage: $(MAKE) [options] [target] ..."
+	@echo
+	@echo "[DOCS]          Generate documentation"
+	@echo "  docs          (alias) swagger"
+	@echo "  swagger       Generate swagger documentation for BBSIM API"
+	@echo
+	@echo "[LINT] - Invoke source linters"
+	@echo "  docs-lint     Lint generated docs"
+	@echo "  lint          (alias) lint-dockerfile, lint-mod"
+	@echo "  lint-dockerfile"
+	@echo "  lint-mod      Golang module verify"
+	@echo "  sca           Static code analysis"
+	@echo
+	@echo "[SETUP]"
+	@echo "  setup_tools   Install module dependencies"
+	@echo
+	@echo "[BUILD]"
+	@echo
+	@echo "[RELEASE]"
+	@echo
+	@echo "[CLEAN]"
+	@echo "  clean         Remove generated targets"
+	@echo
+
+## -----------------------------------------------------------------------
+## ----------------------------------------------------------------------
+.PHONY: help-all
+help-all : help HELP
+
+# [EOF]