Alpha 0.02.0 Release

New update!

- Updated to Unity 2019.12f
- Redid character select screen. Character faces and stats are shown much more clearly, and it's possible to hit B to back out to the Hub Town.
- Results screen now works at the end of races.
- Minimaps are updated and almost-sort-of work correctly.
- Added a skeleton of player animation states, but no animations yet (enabling them breaks the player controls).
- Changed Race-Prep music and Main Menu music.
- Updated Tracks 1 & 5, and completely redid Track 4.
- Added Board Shop.
- Assigned characters and boards to each track (opponents will no longer be randomized).
- Save files now save coins/points, bought boards, and medals earned in Adventure Mode. Medals and points are shown on File Select screen.
- Menu button sprites are slightly fancier.
- End-of-track lift now releases snowflakes instead of checkerboard textures.
- Created universal loading screen with a planned (but not implemented) tip field.
- Added a tips file that is not yet used.