refactored gui, removed old code, formatting, updating send/receive. there are still a lot of timing issues that need to be resolved.
Updated PitGui with callbacks, CarCode to match.

getting close, need to clean up car code more...
more updates
more clean up
harmless removing of comments, etc
more removal of unecessary stuff
removing some spaghetti... i was hungry.
added an exit handler... this needs to be tested.
more refactoring... exit function works.
clean of unused variables, TODOs