Greedy Miners Updated

Change the cave’s shape to keep the miners away.
Yesterday I pushed an update to Greedy Miners addressing some issues:
- Fixed performance issues due to wrong texture loading.
- Added a button to disable GPU-Intensive shaders. (Hotkey: Q)
- Fixed the game window not being resizable. Fullscreen is now possible.
The rest of the game remains intact. Have fun jammers! =)