Lucee Mail Extension

With Lucee 7.1, mail functionaility has been moved from core into this extension

Docs:

• https://docs.lucee.org/reference/tags/mail.html
• https://docs.lucee.org/reference/tags/pop.html
• https://docs.lucee.org/reference/tags/pop.html

Issues: https://luceeserver.atlassian.net/issues/?jql=labels%20%3D%20smtp