v2.0.0: Instant TDP Updates

This semi-major release of adjustor adds ACPI event handling, e.g., Handheld Daemon becomes aware of both AC/DC events and TDP changes with Legion L + Y. This allows both the UI to update instantly and for handheld daemon to restore custom TDP where applicable (just for the Legion Go for now).

In addition, it lazy applies TDP now, so changes to TDP are now only applied after you let go of the sliders.

The license of the project also changes to GPLv3.

Full Changelog: v0.3.0...v2.0.0