Improvements on movement, animations and map

Although I have not been very active here since the demo was released, I am still working on the full version of It breathes. I've done and improved a lot of things, this time I'm not content with "just make it work" solutions. 

I'm completely reworking the beginning of the game and the map, and trying to make the experience as immersive as possible. The linked video shows some of this, featuring the player character's reworked movement.