v0.1 version is a go!

This is an updated version of the game that we've created during a Digital Night Jam session.

Changes for v0.1 : 

-Added actual menu to the game and UI animations

-Added new characters for players in a party game and character selection screen

-Added one new map and a map selection screen

-Added support for up to 4 players, updated camera behaviour for handling up to 4 players

-Added control hints

-Fixed physics issue related to water shotgun

-Added special attacks for weapons