Support --remote-owner-base in the command CmdGetAuthInfo. Make it return what currently --remote-base returned: A URL including the user / organization specific prefix of the Git remote's URL that jw-pkg was pulled from.
https://my-company.com/src/theowner/jw-pkg.git
would have a --remote-owner-base of
https://my-company.com/src/theowner
Also, change what --remote-base returns to
https://my-company.com/src
Signed-off-by: Jan Lindemann <jan@janware.com>