Misc cleanups, add installer for lint-groovy

makefiles/npm/README.md
makefiles/npm/include.mk
makefiles/npm/nvm.mk
makefiles/npm/npm.mk
-------------------------
  o Genreate targets and deps for installing tools nvm, npm and npm-groovy-lint.
  o Tools are intended for interactive use.
  o npm-groovy-lint is a dependency for the lint-groovy target

config.mk
.gitignore
----------
  o Add exclusion lf/onf-make for repo:onf-make git submodule.
  o Add exclusion for .tmp (makefiles/nvm/nvm.mk)

makefiles/lint/groovy/groovy.mk
makefiles/lint/groovy/include.mk
makefiles/lint/groovy/install.mk
--------------------------------
  o Update targets to latest lint-{language}-{all,mod,src} syntax.
  o Installer updated to depend on npm/nvm.mk target 'npm-groovy-install'.

makefiles/lint/make/makefile.mk
makefiles/lint/json.mk
makefiles/lint/python/flake8.mk
makefiles/lint/shell/shellcheck.mk
makefiles/lint/yaml.mk
------------------------
  o Simplify find command exclusions.
  o Use "-not -path [p]" in place of "( -name p ) -prune".

makefiles/main/tempdir/tempdir.mk
---------------------------------
  o Fixed a typo $(HELP) -> $(HIDE)

makefiles/lint/doc8/doc8.ini
-------------------------------
  o Add directory exclusions from onf-excl-dir=.
  o Remove txt from the list of file extensions to check
    repo:voltha-docs is the only repo with *.txt files that contain
    restructuredText so add the extension in the local per-repository
    config.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: Ia2e091d812af82063c79ed855bc7dd4f5ec8f706
diff --git a/makefiles/npm/nvm.mk b/makefiles/npm/nvm.mk
new file mode 100644
index 0000000..0b72fd7
--- /dev/null
+++ b/makefiles/npm/nvm.mk
@@ -0,0 +1,75 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 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 Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+nvm-install-sh := https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh
+
+## -----------------------------------------------------------------------
+## Intent: Install the npm pacakge manager
+## -----------------------------------------------------------------------
+nvm-install : $(nvm-sh)
+$(nvm-sh) :
+	$(HIDE)mkdir -p "$(npm-dir-root)"
+	$(HIDE)mkdir -p "$(node-modules-root)"
+
+	@echo
+	@echo "Retrieve $(nvm-install-sh)"
+	$(if $(NVM_DIR),$(null),$(error NVM_DIR= is required))#
+	curl -o- "$(nvm-install-sh)" | bash
+
+	@echo
+	@echo "Install nvm --lts"
+	$(activate-npm) && nvm install --lts
+#	$(activate-npm) && nvm ls-remote
+
+	@echo
+	@echo "Install debug module"
+	$(activate-npm) && $(npm-install-cmd) debug --save
+
+## -----------------------------------------------------------------------
+## Intent: Display command version: nvm, node
+## -----------------------------------------------------------------------
+nvm-ver : nvm-install
+	$(activate-npm) && nvm --version
+	$(activate-npm) && node --version
+
+## -----------------------------------------------------------------------
+## Intent: Remove generated tool and package directories
+## -----------------------------------------------------------------------
+sterile ::
+	$(RM) -r "$(npm-dir-root)"
+	$(RM) -r "$(node-modules-root)"
+	$(RM) "$(npm-dir-root)/package.json"
+	$(RM) "$(npm-dir-root)/package-lock.json"
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+nvm-help :
+	@printf '  %-33.33s %s\n' 'nvm-install' 'Install the nvm package manager'
+	@printf '  %-33.33s %s\n' 'nvm-ver'     'Display tool version: nvm, node'
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]