Pyramis 0.2.0

Pyramis 0.2.0 is here, with some big gameplay changes that'll make the game more exciting for expert players!

• Now it's possible to hard drop! Press up to instantly shoot your piece to the bottom.
• DAS has been sped up from 2 frames to 1 frame. I hope this proves to be a useful tool when trying to survive the higher levels!
• Speaking of higher levels, the lock delay and animations will now speed up more gradually. Don't get too comfortable, though, because the gravity is also now uncapped!
• Timings for the dynamic music have been adjusted.

The main priority with this update was to rework gravity and collision to allow for speeds faster than 1 tile per frame. Previously, any speed faster than that would make pieces clip through each other. Due to the rework, hard dropping could be implemented simply by forcing the gravity to a high number, and the harder levels no longer needed a speed cap.