VOL-4883 - Publish a new bbsim release

https://github.com/opencord/bbsim/releases/tag/untagged-6d947de2a6078a1fe175
----------------------------------------------------------------------------
  o Draft bbsim release v2.96.8572 created by this patch set.
  o All 6cross-compile binaries are now included.
  o Change ID + commit message document the release.
  o Binaries downloaded/tested using {bbr,bbsim,bbsimctl} --help

Makefile
--------
  o Makefile release target is now able to cross compile all binaries:
    - bbsimctl cross compiled to arm, darwin, linux and windows.
    - release-{bbr, bbsim} only built *-linux-amd64
  o Refactor targets into a more modular and hierarchial setup.
  o Be sure to create RELEASE_DIR early on localhost so docker
    container can create a volume (NFS mount) for building into.
  o Display banners when building targets to improve log readability.
  o Clean targets updated to remove everything generated.
  o Help targets added to document indvidual target logic.
  o Makefile logic heavily commented.

makefiles/release/bbr.mk
makefiles/release/bbsim.mk
makefiles/release/bbsimctl.mk
-----------------------------
  o Relocate build-* and release-* target logic into named makefiles.
  o Update SHELL to set -euo pipefail to detect uninit shell vars.
  o Replaced shell/looping logic with true makefile target dependencies:
    - shell/loop replaced with a target rule that builds one platform binary.
    - Derive a list of targets release/{bbr,bbsim,bbsimctl}-{os}-{arch}
    - release: depends on all buildable targets
    - release rule can extract arch= and os= from target path being built.
    - To simplify logic construct env vars separately into a response file.
    - passed as "docker --env-file [x]" VS appending to an ever growing command line.
  o Marked more targets as .PHONY so they will always build.
  o Added helper target 'onf-publish' for exercising changes in the github-release script.

makefiles/include.mk
--------------------
  o Single include for importing all library makefiles.

makefiles/consts.mk
-------------------
  o Include fixed values, esp $(quote-single) which is now used to document
  o Refactor duplication in GO_* macros into named/reused values to shorten lines.

makefiles/lint
--------------
  o Moved lint::docker (hadolint target) into makefiles/lint/docker/*.mk.
  o Added makefiles/lint library targets for ability to lint more sources.

makefiles/tools.mk
------------------
  o Refactor DOCKER_* and GO_* macros into a named includable makefile.q

Change-Id: I8791317ba0c3f01d047f363e69f8885a03f1a1a1
diff --git a/makefiles/tools.mk b/makefiles/tools.mk
new file mode 100644
index 0000000..4aafcbd
--- /dev/null
+++ b/makefiles/tools.mk
@@ -0,0 +1,48 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 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.d
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## Docker related -- are these ${shell vars} or $(make macros) ?
+DOCKER_TAG  			?= ${VERSION}
+DOCKER_REPOSITORY  		?=
+DOCKER_REGISTRY 		?=
+DOCKER_RUN_ARGS			?=
+DOCKER_PORTS			?= -p 50070:50070 -p 50060:50060 -p 50071:50071 -p 50072:50072 -p 50073:50073 -p 50074:50074 -p 50075:50075
+TYPE                            ?= minimal
+
+# tool containers
+VOLTHA_TOOLS_VERSION ?= 2.3.1
+
+docker-run     = docker run --rm --user $$(id -u):$$(id -g)#   # Docker command stem
+docker-run-app = $(docker-run) -v ${CURDIR}:/app#              # w/filesystem mount
+is-stdin       = $(shell test -t 0 && echo "-it")
+
+# Docker volume mounts: container:/app/release <=> localhost:{pwd}/release
+vee-golang     = -v gocache-${VOLTHA_TOOLS_VERSION}:/go/pkg
+vee-citools    = voltha/voltha-ci-tools:${VOLTHA_TOOLS_VERSION}
+
+GO                = $(docker-run-app) $(is-stdin) -v gocache:/.cache $(vee-golang) $(vee-citools)-golang go
+GO_SH             = $(docker-run-app) $(is-stdin) --env-file ./foobar -v gocache:/.cache $(vee-golang) $(vee-citools)-golang sh -c
+GO_JUNIT_REPORT   = $(docker-run-app) -i $(vee-citools)-go-junit-report go-junit-report
+GOCOVER_COBERTURA = $(docker-run) -v ${CURDIR}:/app/src/github.com/opencord/bbsim -i $(vee-citools)-gocover-cobertura gocover-cobertura
+GOLANGCI_LINT     = $(docker-run-app) $(is-stdin) -v gocache:/.cache $(vee-golang) $(vee-citools)-golangci-lint golangci-lint
+PROTOC            = $(docker-run-app) $(is-stdin) $(vee-golang) $(vee-citools)-protoc protoc
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]