multimedia/projectx: Deprecate and set expiration date to 2025-03-31

Abandonware, last release in 2011 and dependens on legacy version of
Java. Redirect users to multimedia/ffmpeg or multimedia/vlc

Other utilities worth looking into are tsduck and mts-tools
https://github.com/tsduck/tsduck
https://github.com/xyproto/mts-utils (appears to be abandoned)