For future 275 students: Haven't uploaded the finished version so don't bother copying
TO DO:
PART 2
- serial communication on C++ file 😒
- main function crap for python file/serial communication
- drawing the lines or whatever
PART 1
- least_cost_path() (yike-stras algorithm)
- load_edmonton_graph()
- CostDistance class/functions
- SERVER????? WTF