graphics/dust3d: update the port to version 1.1.6
- GC no longer applicable patches, BROKEN_aarch64, and dependencies after CGAL-based mesh code was replaced with built-in algorithm (since version 1.0.0-rc.7)
- Replace banal hand-rolled `do-configure' recipe with USES+=qmake, refine COMMENT text, etc.
- Install provided icon and .desktop file instead of specifying nearly identical DESKTOP_ENTRIES
PR: 295221
Submitted by: Alastair Hogge
Reported by: portscout