Added basic jumping
Added 3 different block types, fixed all (I think) memory links, added mouse grabbing and releasing, and rendering different block types
Added block removal and position detection, among various other minor changes
Added raycasting for block detection and picking.
Added key-typing and mouse-clicking
You can now remove blocks by clicking on them. X-rotation (positional y-axis) doesn't work 100% properly.
Added HUD for player (basic target). TODO: Fix block selection.
Fixed block ray casting on x-rotation axis (y-position).