Added Mob object, which replaced the Creature object. Later on this'll
probably inherit from some kind of MapObject parent. For the time being,
it'll do.

The Player interactions are mostly fleshed out now. I just have one huge
problem.

The method in which I get the context of the "packages," the ones which
contain a singleton which I access throughout the game, is not gonna work. I
have the Nanny requiring access to the Game, and the Game requiring access
to the Nanny. And to access either, I have to require() them.

I may have to do something like just have the Game be a globally accessible
entity to start with. We'll see.
I am currently in the process of reworking the way the files work together
so there isn't any conflicts when trying to load other files together. The
big problems right now are when two objects need to access one another's
members. Due to the way requrie() works, when A requires B and B requires A
("require()"), there is a loop conflict (as you might expect).

I think I'll have to do something akin to header files in this case, which I
really don't want to, but we'll see what happens.

Also, worked in Player <-> Mob referencing.

OH YEAH. I ADDED MAPS. Totally forgot. Still working on the MapObject
structure, so it's more sensible. But we'll see.