Distinguish forks and references in repositories

In site admin > git > mirrors > repositories, instead of displaying the
name of the repo:

| Id  | Name        |
|-----|-------------|
| 123 | firefox.git |
| 134 | firefox.git |
| 235 | firefox.git |

We display the path so that we distinguish personal forks:

| Id  | Repository                    |
|-----|-------------------------------|
| 123 | mozilla/firefox.git           |
| 134 | mozilla/u/nicolas/firefox.git |
| 235 | mozilla/u/dylan/firefox.git   |

Part of story #7326 see list of repositories mirrored

Change-Id: I255f004d0ac74652910f34401925111cef6f1cfc
Merge commit 'refs/changes/90/3190/1' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Distinguish forks and references in repositories

Change-Id: Ic1cdef39128c97368b3cebc9a43609832ca91f5b
This is Tuleap 7.6.99.29

Change-Id: Idc09200ca220b352bec17b9ce66806d5e7dccac7