Stuff

Moved source files to /src for cleaner organization now that there are
multiple files.

Start working on loading stuff from file. Using dummy.txt for some basic
format.

fileops.cpp does the reading, right now only a test. With a very ugly
manual parser. I'm making some structure to fetch back a template
encounter to main.cpp and load monster variables there.

Still quite a long way to go, and even if it worked I still have to
generalize code like combat, so that it can use new monster types on the
fly (instead of hardcoded ones).