multimedia/avidemux: update to 2.7.4 and readd Qt gui port
- multimedia/avidemux-qt5 repo copied from multimedia/avidemux-qt4
- The port as a whole is in need of a little modernization
PR: 242634
Submitted by: Lars Herschke <lhersch@dssgmbh.de>,tcberner
Tested by: rkoberman@gmail.com
Reported by: VVD <vvd@unislabs.com>