Added Alex stuff:
- Player handling script and animations
- Sound files and sound player
Removed unused meta file
Worked on map handling:
- Divided the map into areas (16x16 tiles)
- Added an array of meta-information for tiles (walkable, object placed on tile etc)
- Return all tiles of an area
- Return all walkable tiles of an area
- Return all tiles in a radius around a specific tile
- Return all walkable tiles in a radius around a specific tile