Add a name for the email adress (forgename)

This task is part of story #7542 define a mail domain

Change-Id: I7557ec196206883ea0af8da9e597ae00cd49aaaa
Merge commit 'refs/changes/12/3212/1' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  Add a name for the email adress (forgename)

Change-Id: Iae79d714e39c5ce82ab2a7978d2be3c2950380a3
This is Tuleap 7.6.99.50

Change-Id: I1fdcbee218df4a12627ba2cf0dcf85e033790997