Merge remote-tracking branch 'origin/DEV_Xogium' into DEV_jookia

packages/lifepo4wered-pi: new package.

Add SPDX-License-Identifier to scripts ...

Clarify the license of copyrighted works made by Xogium.
This deliberately excludes files that may not be copyrightable such as
purely informative files like hashes for packages, config values,
systemd units, and machine generated files.

Initial commit.