Add offline token option
Add offline token option

Login needs to add an offline token flag to ensure a refresh token is returned by the token endpoint.

Signed-off-by: Derek McGowan <e1c79a582b6629e6b39e9679f4bb964d25db4aa8@mcgstyle.net> (github: dmcgowan)

thaJeztah/distribution,thaJeztah/distribution