Using public URL for googletest submodule
Using public URL for googletest submodule

Use public URL instead of SSH URL to avoid authentication errors when pulling from googltest.

See this for more details.  https://salferrarello.com/git-submodule-fatal-read-remote-repository/
3MFConsortium/lib3mf,3MFConsortium/lib3mf,3MFConsortium/lib3mf,3MFConsortium/lib3mf,3MFConsortium/lib3mf,3MFConsortium/lib3mf,3MFConsortium/lib3mf