tristate features will automatically disable if dependencies marked
as required are missing.
Packagers can manually override using `auto_features`.
Link: https://mesonbuild.com/Build-options.html#features
This CL creates a mostly empty fu-plugin-powerd.c that
has the file disable itself on startup with an error.
The README.md file was re-created to include information on
powerd and the specific interface it will use.
A meson.build file re-created to call fu-plugin-powerd.c.
It excludes a .conf install function was removed to be consistent with
an upstream change.
The general meson.build file includes the
powerd subdirectory for powerd to compile.
No .quirk file was included. There will be general daemon.quirk file for all plugins.
FIXUP: Adjusted copyright format and whitespace in fu-plugin-powerd.c
and plugin returns false on startup. Also added to "fu-plugin-powerd.so"
entry fwupd.spec.in.
