CXMAN-137: Be more careful with the --version options
CXMAN-137: Be more careful with the --version options

The global --version option, and the fwupdate --version option,
were conflicting. We'll leave the names the same for now, but make
sure they're parsed into separate variables.

SilverLiningSystems/cxmanage-test,SilverLiningSystems/cxmanage-test2,SLS-Dev/cxmanage,SilverLiningSystems/cxmanage-test2,SilverLiningSystems/cxmanage-test,SLS-Dev/cxmanage,Cynerva/cxmanage,Cynerva/cxmanage