Merge branch 'kevins_branch' of https://github.com/rokthewok/EmuNotOstrich into johns_branch
Fixed flag setting logic
Created addition opcode classes. Heirarchy modeled after increment and decrement
Added addition tests to suite
Added remaining 8 bit addition codes. Also refactored base class flag checks
Completed all but one Addition test case
provided initialization code for memory data member
Completed 8 bit addition tests
Added tests for number of cycles in AdditionTests
Merge branch 'master' into johns_branch

updating my branch
Merge branch 'kevins_branch'
Work on tests
Merge remote-tracking branch 'origin/master' into kevins_branch