v0.9.1 Add /usb option, tidy output formatting

Active column should only be shown when All (-a) or Verbose (-v) flags
are given by the user.
Print Windows Friendly Name for ports, only print Vendor & product
strings in (-v) verbose mode.
Improve handling & printing of port's bus name.
Include github location in source & copyright help text.
Add /usb commandline option.
Deprecate /vid & /pid commandline options.
Also minor fixes and code tidying.