Changes

- Fixed game speed, time no longer depends on frame rate
- Adapted UI for 128x160 resolution (you can also run it at 128x128)
- Terrain and cave generator based on noise algorithms
- Destruction of blocks from normal mode (hold FIRE/5), the destruction helper has a customizable depth - from 1 (classic) to 4 blocks from the player
- Added animated fire block
- Fixed a bug with double cursor movement in the inventory using the number keys
- Started work on the system of mobs and saves