games/chocolate-doom: update to 3.0.0

While here:

• add rc script for server [1]
• add pkg-message on music configuration [2]

PR: 225453
Submitted by: jakub_lach@mailplus.pl (maintainer)
Submitted by: Shirkdog <mshirk@daemon-security.com> (update and [1])
Submitted by: Patrick McMunn <doctorwhoguy@gmail.com> [2]