Update 1.0.5

Hello! Today's update is a small one. Just focused on 4K monitors and controller test.

General:

• Now UnMetal allows resolutions up to 3840x2160 on full screen and windowed.
• Added new test for controllers (type "test controller" on ENTER CODE)
• Controller issues going N,S,E,W are now fixed (thanks David FRÉTÉ for the help!)

Grenade Guy:

• Now you can see his grenades coming in 4K!