Fang Bounce Tweaks

Aims to make fang generally more fun to play as by increasing aerial control to be identical to jumping and removing most momentum cuts related to activating/deactivating the bounce aside from the vertical cut when exiting. This is my first merge request, so apologies for any potential issues here.

I've attached a testing EXE for those who wish to try this out themselves without having to compile. srb2win-bouncetweaks-v2.exe

Outdated older version in case anyone wishes to see how he feels with the old increased aerial control. srb2win-bouncetweaks.exe