Refactored imagetool diff?? subcommands to shrink code.
Refactored imagetool diff?? subcommands to shrink code.

rgooch/Dominator,rgooch/Dominator,keep94/Dominator,Symantec/Dominator,Symantec/Dominator,rgooch/Dominator,keep94/Dominator,keep94/Dominator,Symantec/Dominator