Refactor clean up configuration to simplify

All options were configured dynamically by sending a single byte to an
output stream. But in practice, only the power mode must be changed
dynamically, the others are configured once on start.

For simplicity, pass the value of static options as command line
arguments, and handle dynamic options in a loop only from a separate
thread once the clean up process is started.

This will allow to easily add cleanup options with values which do not
fit in 1 byte.

Also handle the clean up thread (and the loading of initial settings
values) from the CleanUp class, to expose a simpler clean up API.

Refs 9efa162949c2a3e3e42564862ff390700270394d
PR #5447 <https://github.com/Genymobile/scrcpy/pull/5447>