allow mirror also submodules #25
Description
projects like protobuf or grpc have a lot of submodules which are needed at compile time...
It would be great if this tool could also mirror the submodules with e.g. a regexpression -> submodules under github.com/mygroup/my_project -> mygitlab.com/mymirror/mygroup_my_project
Eventually we would need to give this tool API access to a gitlab instance to create repos automatically
cc/ @max-wittig