Speedometer, Better Controls, Grid Texture

- Adds a speedometer UI element that shows speed in both miles per hour and meters per second
- Adds better controls. Used W/D for speed control and A/D for direction. Left joystick for speed control and right joystick for direction.
- Changes the floor texture of all levels to be a 1m grid.

Assets/Materials/1mGrid.mat

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Assets/Models/Drum/Drum.mat

@@ -61,9 +61,9 @@ Material:
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