Changes
Changed default play arena.
Added DX11 / Vulkan launch options (experimental).
Added basic experience and rank system.
Reworked menus.
Fixed various UI related bugs (Getting stuck in menus).
Fixed target spawning locations.
Drastically reduced cat image file sizes.
High score/s visible on main menu.
Changed player height.
Fixed resolution combo box issue from previous update.
Now checks and removes old / incompatible save data file
