[Improvement] Enhance Monitor Output

[baileyparker]

The monitor is useful for debugging programs, but when stepping through a program it's often difficult to keep track of what is happening in memory.

I think it would be a nice enhancement if the monitor output had smart color coding to give some context to what is going on and where in memory you are. Examples include color coding locations read and written to by the previous instruction, where the special memory locations are, where the program is (and where the PC is), and where the display is.