Started working on ControlUnit.
Merge branch 'master' of https://github.com/AnotherJoSmith/Shitty_Calculator

Conflicts:
	ShittyCalculator/bin/Accumulator.class
	ShittyCalculator/bin/MemoryRegistry.class
	ShittyCalculator/src/Accumulator.java
	ShittyCalculator/src/MemoryRegistry.java