Add xmms-efxmms.

EFXmms is a standard XMMS effect plugin adaption of EFX. It provides the
possibility to send the audio through a queue of multiple effect plugins
instead of one effect that XMMS originally handles.

WWW: http://sourceforge.net/projects/efxmms/

PR: ports/82363
Submitted by: Alejandro Pulver <alejandro@varnet.biz>