Animations

-Added sound effects
-Now rather than only look for the top of the grass downward from the top of the range, it also looks upward from the starting height (inside grass). This fixes the issue with a tall piece of grass being left out due to having a top outside the range used. It can also help cutting under props / stairs etc by using lower settings. (however those are still not auto rejected)
-Slight opitimisation resulting in better frame rates
-Renamed to Weed Wacker from Grass Trimmer