Quick hotfix to add a few new options and fix some game break bugs

Changelog

Added

• V-sync option

• FPS Limit option

Fixed

• Fixed a bug where you was kicked from the match for hitting a zombie with melee weapons when playing as a client

• Fixed a bug where you don't receive money when rebuild a barricade when playing as a client

• Fixed a bug where you don't receive money after killing a zombie with a gun when playing as a client

• Fixed a bug where your money was limited to 36$ when playing as a client

Alright, I think that's all for now, unfortunately, I switched my "day off" from today to tomorrow so, if you guys can, please, don't break the game again