Speedrun Timer Improvements

Changed the built-in speedrun timer from an on/off toggle to a selector with multiple different speedrun types:

1. Total Playtime: Same as the old behavior, just an on-screen timer that counts up.

2. Any %: Stops the timer when you beat the game.

3. All Stars: Stops the timer when you have all stars. 4.

All Rainbow Gems: Stops the timer when you have all rainbow gems.

I haven't tested super thoroughly, so apologies if they don't work in all cases.

Also you can change speedrun mode at any time, but it works best of you use them on a new or reset profile.