Made the code better than before

Fixed ALL mouse buttons not functioning with the binds

Fixed Some Lua errors related to weapons

Fixed:
- Pierceshot And Electric Railgun not working with ricoshots
- Player HitBox not changing while sliding
- Random Boosts while slide-jumping
Improved:
- WhipLash is now easier to hit

Added A convar:

ultrakill_gamemode_playerjumppower - set the player's jump power

Fixed The Movement Ability Toggle buttons not working, added a convar:

ultrakill_gamemode_UseUltraMod (deafult 1, enables/disables the addon's features in game, without having to reload)

Fixed Errors during spawn causing more errors

removed friction modifications for the player (no more sliding), attempted to fix certain tables sometimes being nil

It appears the the creator of this addon forgor to write a changelog!

Fixed Errors due to trying to send messages to a non existent player