Work on tests
Merge remote-tracking branch 'origin/master' into kevins_branch
Fixed DecAddrHL opcode. Added a brief test for DecAddrHL, need to add
flag tests because it doesn't not inherent from one of the two abstract
classes.
Moved all LoadImmToReg files into their own folder. There's a lot of
load opcodes and this will help to organize them.
Added getOpcodeLength to IOpcode interface. This will be used to
properly increment PC after execution.
Merge branch 'kevins_branch'