Update notes for v1.14.11

Gameplay : Increased difficulty to make drop shots.
Gameplay : Increased penalty for hitting the ball close to the ground.
Gameplay : Code fix that should improve volley control.
AI : Improved shot choice in response to drop shots.
Sound : Fixed infamous bug that messed up stereo for in-game effects.
Modding : Allowed _NCE prefix for modded bag textures.