New opcodes

* List of new opcodes:
 - 0xea
 - 0x3d
 - 0x28
 - 0x0d
 - 0x2e
 - 0x18
 - 0x57
 - 0x67
 - 0x04
* Change debug format for easier
  cross-reference to RealBoy debug
* Fixed wb() memory function
INC ops do not have unit tests

* Need to develop unit tests for INC ops