Fastidiousity

Felt like getting some of the refactoring grunt work out of the way, so I created a BorgCharacter class and gave it most of the code dealing with party members from the state machine. That cleaned up a lot of code, and it'll provide a good jumping off point for implementing the job system.

Tried the new and improved cartographer out on some of the dark, unmapped corners of the Pirate Ship and the Wind Shrine, and it works great. It's nice to see it scurrying around and hunting down unexplored bits that it used to ignore. I'll have to go back and clean up some remote FF4 maps with that sometime.

We have a few more remaining issues with the cartographer, and I'd like to take care of most of them before moving on from the Tule proving grounds.

• We're not recording gold-filled treasure chests or monster-in-a-boxes properly yet. That should be a relatively quick fix.
• Cutscenes still are ignored for the purposes of navigation unless they're our destination. At the very least I'd like to be able to manually mark a cutscene as one that repeats and moves you to a different location, so we can treat them like transitions. Without this, the cartographer can get into infinite loops, like trying to explore the wall behind the exit warp in the Wind Shrine and getting warped out over and over again.
• Cutscenes are still sometimes recorded as starting on the wrong square. I might leave this one for now and build a test case for it when it becomes too annoying.
• Currently, NPC avoidance assumes that we never put ourselves into a situation where we've hopelessly pinned an NPC between ourselves and our goal. This is generally true during normal gameplay, but the cartographer may end up exploring itself into just such a situation, because it didn't have the problem destination in mind until the NPC was already pinned. My inclination is ignore this problem if we can finish the map by just restarting and rerunning the cartographer when it gets stuck. If that's not good enough, I'll teach it to try to reroute around the NPC if it has to wait more than a certain number of frames.