Early version of multiplayer

Multiplayer is now available in the game. This is a very early version.

You can test how it works in a multiplayer game:

• Connection
  
• Lobby list
  
• List of players
  
• Character animations
  
• Synchronization of position and movements
  

Also fixed several bugs with controller management.
Added the interior of a large house.

Further updates will be aimed primarily at the development of multiplayer, improving optimization and fixing bugs.