Fixes to test.py, specifically in the Vector tests. Some tests still fail.
-Finished cleaning unfinished code in vectors enough to let test.py run.
+Laid out framework for the rest of environment unittests
+Wrote add_cells unittest
Added unfinished Cell find_food testing, fixed spacing(?) and added .gitignore file because .pyc files suck.
Finish food-finding tests

They're working beautifully<3