A Whip

Features:

* swing your phone to make it do a whipping noise
* support for multiple types of whips

### Changed
- App support for swing detection on a way broder range of phones (switch from
gyroscope to acclerometer sensor data)
- support for left handed users (use polar coordinates instead of caretesian
coordinates for interpreting sensor data)
- upgraded project to newest version of android build tools, androidx, app compat, etc.