[VOL-5358] - misc edits needed to support repo:onf-make use.

config.mk
---------
  - Simple copyright notice update.

makefiles/commands/include.mk
makefiles/commands/kubectl/include.mk
-------------------------------------y
  - Added a central installer for the kubectl command.
  - Rename commands 'help::' target to commands-help.
  - Default help is growing long in the stream.

makefiles/commands/kail/include.mk
makefiles/commands/pre-commit/
makefiles/commands/tox/tox.mk
----------------------------------
  - Update copyright notice
  - Changed default help target to target commands-help and define
    {command-name}-help for individual targets.  Default help target
    is beginning to grow long displaying everything.

makefiles/docker/include.mk
---------------------------
  - Update include docker config file (directory mount paths) to also load
    the config from lf/local/docker/config/include.mk to avoid storing
    all custom repo configs in repo:onf-make.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I075be7c710bd7308ce258109455cc2ea2a3ae780
diff --git a/config.mk b/config.mk
index 5e11699..ca6b8f1 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2023--2024 Open Networking Foundation Contributors
+# Copyright 2023-2024 Open Networking Foundation Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 # -----------------------------------------------------------------------
-# SPDX-FileCopyrightText: 2023--2024 Open Networking Foundation Contributors
+# SPDX-FileCopyrightText: 2023-2024 Open Networking Foundation Contributors
 # SPDX-License-Identifier: Apache-2.0
 # -----------------------------------------------------------------------
 # Intent: