Added all OP-codes of disassembler, stripped I/O

Many bug fixes and changes. Added room for improvement by expanding
limitations. Code can still be optimized and trimmed dramatically, but
this is the last and final update from myself.
Updated README, removed TEST, added preview
ALL Display Modes Implemented!!!

(d16,PC)
(d16,An)
(d8,PC,Xn)
(d8,An,Xn)

Supports and prints size and scale as well.
All buffer advancement bugs have been fixed to support these modes.
There should no longer be BAD lines as long as the instruction is
recognized.
Also put the TESTAM methods back into MOVE and MOVEA. MOVE and MOVEA now
have 100% error checking.
Merge branch 'master' of https://github.com/schooley/Disassembler