Corral should support cloning git repositories via ssh

[mfelsche]

Currently corral clones git repositories using https. It should also be possible to clone via ssh.

It should be possible, to configure how corral clones git repositories either on the command line, when running corral, in an environment variable or config file.

I don't think that it should be part of the locator, as this is a modality of the corral user and how he has configured access to the git hoster (e.g. github/gitlab).

[SeanTAllen]

Why should it allow ssh in addition to http?

I dont see the utility for that.