Added Skeleton of first dungeon and HUB.

When entering the boss room, it glitches out when you try to leave. This
is intentional; don't worry about it at this point.
Revert "Added Skeleton of first dungeon and HUB."

This reverts commit d00ab63143187c7532b58332c9cfc9381b73d0f5.
Added Skeleton of first dungeon and HUB. Also added walking/pushing animation

Ignore not being able to leave the boss room, this is intentional; Since
we're still not decided on how the boss room is going to work, I made it
so you can't leave for now.