Added generic 'LD (RR), A' method
Added 'INC H'
Added generic 8-bit INC method
Renamed private methods
Added generic 16-bit decrement method
Added 'DEC H'
Added 'LD H, n'
Added 'DAA'
Added 'JR Z, n'
Added generic 'LD R,n' method
Added generic 'LD RR, nn' method
Added 'LD HL, HL'
Added generic 'LD (RR), A'
Added generic 'LD RR, nn'
Refactored _inc16 to _incRR
Refactored _inc8 as _incR