Update Demo 1.1

It was fixed:
- Animation bug with dialog state
- Collision bugs
- Bugs with the interface
- A bug with throwing enemies into the sky
- Bug with a metal wall
- A bug with a bullet collision
- Bug with optimization in the main menu
It was added:
- Options menu
- Graphics settings
- Screen resolution setting
- Auto save now happens more often
- Pointer for the first secret in the second level