Among Man v0.1.0

Hello. This is v0.1.0 of Among Man.
In this release, an actual maze has been added to the game and the controls have been redesigned to be more like Pacman. Before, the movement let you move around freely and letting go of the stick makes the player stop. In Pacman, you continuously move in the direction you're facing.

Changelog:
- Among Man's model now moves when you move directions.
- You can now go to the Main Menu from the game screen
- There is an maze with dots.
- The movement controls have been converted to use the new Unity Input System package instead of the old UnityEngine.Input system.
- The movement system has been redesigned to be more like Pacman.