Removes the default components for now. Adds a test case.
The Entity class has a full test case.
Updates the code style on the Entity class.
Adds a test case for the EntityManager
Performed suggested clean-up.
Removes the superfluous use of UUIDs in the entity manager.
Adds a utility method for checking for Entities and tests to verify interaction between the manager and the entities contained therein.
Fleshes out the test case for the EntityManager.
Adds test cases for the important components of this library.