Add a new enumeration for cpu scheduler governors.
Adds a property to get the available governors as a map of
value to strings similar to how we expose GPU Power Profiles.
Adds another property to get and set the current governor which
is applied to all cpus when set.
Add profiles property to give back available
profiles on this device.
Add profile property to get and set current gpu
power profile.
Filter possible properties when on deck.
Get current profile based on position of * character.
Get card0 path based on which cardX has vendor 0x1002
Add some basic tests.
TODO:
Possibly cache available properties instead of fetching repeatedly.
