Save System & Some level changes.

So I added a save system, you have to remember a 3 digit code but it works. This code is shown in the bar and you have to put it in the load menu. 

I fixed the falling forever if you got out of the map. I tried fixing get out of the map but I'm not sure if it worked. 

I added some more stuff to look at in the levels.

I added the Gallery a place with just the models and some lore that you unlock the as you play.

So yeah I hope you guys have fun!