Added Missing Unit Test for Invalid Op Codes

Added a unit test that the code coverage pointed out.
Increment Operation Completed
DEY, DEX, INY, INX Operations Completed

Also fixed an issue with cycle count for INC
Reorganized the Groupings of Instructions

I changed the grouping of instructions in the switch into logical
groupings
EOR Operation Implemented
JMP Operation Implemented

I was missing one of the modes for JMP
JSR Placeholder Added

Added a placeholder for the JSR Operation
LSR Operation Added

Added the Logical Shift Right Operation
NOP Operation Added