Give right to codendiadm on all git repository.

This is a step of story #6971: Git online commit in the Tuleap UI

It permits to perform git clone/push directly from Tuleap. The only problem
with this is that it allows anybody who can access as codendiadm on the server
to manipulate all repositories.

Change-Id: Ic83e88eba25bdbf760d8a887023445a6ccce2359
Merge commit 'refs/changes/25/2525/35' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  Give right to codendiadm on all git repository.
This is Tuleap 7.2.99.38

Change-Id: I808b466105605cf0838046311d77c183847b2e7c