* Smoother countdown and new menu and in-game animations
- Countdown digits pop in and fade out each second, with a ring of dots showing the remaining part of the second
- Medley countdown uses a smoothed timer and no longer stutters
- Rating popups scale in from below and drift upwards while fading out
- Player scores pulse briefly at the end of a line
- Pause menu fades and scales in and out
- Buttons and select slides pulse briefly when they get selected
- Shared easing functions and a draw transform for animations
* Retrigger CI
* Apply R# clean-up for reliability
- Migrate to NUnit4 Assert.That
- Update dependencise versions
- Fix LangVersion to 9.0 (until net core migration)
- Reformat code
- Apply 'var' style (easier for refactoring)
- Remove redundant parentheses
- Add braces on every condition blocks (1 line)
- Uses new null checking patterns
- Uses AutoProperties when possible
- Uses string scalar type instead of class
- Clean usings
- Add .orig files in git ignore
- Rename some properties to respect defined conventions and US format definition
- ID -> Id
- BPM -> Bpm
- Finish -> End
* Update R# settings according to the clean-up made
McSchneidar