Add .mailmap file for git shortlog

.mailmap

@@ -0,0 +1,18 @@
+Alexander Ishmuradov <ishmuradov@gmail.com> <_chewits_@bk.ru>
+Bob Clough <bob@clough.me> <parag0n@dev1.dataspire.co.uk>
+Damien Regad <dregad@mantisbt.org> <dr_mantis@regad.org>
+Damien Regad <dregad@mantisbt.org> <damien.regad@merckgroup.com>
+David Hicks <d@hx.id.au> <hickseydr@optusnet.com.au>
+Jan Müller <muller.jan@gmail.com> rattkin
+Johannes Goehr <johannes.goehr@mobilexag.de> goehr
+John Reese <john@noswap.com> <jreese@leetcode.net>
+Jose Ramon Roca <jrroca@pobox.com> jrroca
+Jose Ramon Roca <jrroca@pobox.com> <root@sistemas.nebrija.es>
+Michael Lorer <info@01-scripts.de> 01-Scripts
+Philipp Beckmann <pab@pabnet.de> <philippbeckmann@pabnet.de>
+Philipp Schaefer <philipp.schaefer@durag-data.de> philippschaefer
+Ren Wei (任卫) <renwei@mergesecrity.com> renwei
+Rodrigo Farias <rodrigof@pwbank.com> <rodrigofarias77@gmail.com>
+Roland Becker <roland@atrol.de> atrol
+Sébastien Rombauts <sebastien.rombauts@gmail.com> <sebastien.rombauts@mail.com>
+Victor Boctor <vboctor@gmail.com> <victor@mantishub.net>