additional ssh interface command processing

[roy_lyons]

There is a feature which is available in gitolite that my users would very much like to see in stash.  When they ssh like so:

ssh git@gitserver info

they get a list of repositories to which they have access, and whether it is read or read/write

There also used to be a feature in gitolite that allowed an admin to supply a user id as well to show what a particular user has access to.

I have an additional need as an administrator to produce per-user-access reports (which I cannot do in bitbucket).  Whether through an ssh call, or through a rest api call, this type of information is extremely valuable.

My hope is that the same functions already in place within the code that determine access level on a push can be re-used to create this functionality.