- Added: File with PHPMD authors and contributors.
- Added: File with PHPMD authors and contributors.

If I missed someone, please send me a message and I will add you or fix
issues in the AUTHORS.rst file.

phpmd/phpmd,BernardoSilva/phpmd,JeroenDeDauw/phpmd,DanielSiepmann/phpmd,postalservice14/phpmd,behance/phpmd,ravage84/phpmd