Display if condition is met (and more)

This adds a function that decodes all information that the disassembly can make use of out of an opcode. Some of that is used to simplify other code, some will be used later on (the data acess variables), and then it allows displaying if a condition is met taken: http://puu.sh/3OWq6/5bb721b3f1.png

I changed the MIPSTables for this, so it would probably be best if someone else also looked over it before merging.
There were also some bugs in MIPSCodeUtils. Some of these functions were actually used, so maybe it changes things slightly somewhere.