multimedia/qmmp-qt5: update to 1.7.2 release (+)

Changes since version 1.7.1:

• added SIGTERM signal support
• added additional information in the "about..." dialog
• improved skin unpacking
• improved Windows support:
  • using 7-Zip archiver for skin unpacking
  • support for packed skins in tar.gz and tar.bz2 formats
  • 64-bit build support
  • mute support for wasapi and directsoud output plugins
• fixed double-click behavior of the file system viewer in the simple user interface
• fixed crash in the two-panel file dialog
• fixed playback starting from the file dialog (thanks to cybersnow_2001)
• updated Dutch translation (Heimen Stoffels)
• updated Finnish translation (Kimmo Kujansuu)
• updated Polish translation (Marek Adamski)
• updated Russian translation