In class... hash - Unstable/WIP
1st Round HashTable tests (passing). Single test (passing) for Student
Adds docstring. Refactors tests to use _jane_john_and_jake() method.
Refactors tests (generalizes "hash_table" to "uuc"). Adds _make_uuc()
Refactors iteration (modulus / is not None). Extracts _index_from...()