Add support for ssh authentication

[eonist]

While authenticating via username and password works well, some users may want to utilize ssh priv/pub krys instead. ssh authentication works on github and private git servers.

Setting up ssh authentication on a git project is a little more cu,bersome than simply login in with username and password, sine you need to generate a priv and pub ssh key, then attach this ssh pub key in the remote git server. And also create and remember a password for the ssh keys.

One possibility would be to add ssh key authentication alongside the regular username and password authentication via the repositories.xml file. By omitting the username attribute and just pointing to a valid ssh key in keychain in the keychain-password attribute.

Note: What is keychain helper, and do you need to install this for ssh to work? Note: whats the deal with github not supporting shell access when using ssh?

[eonist]

do research on this