This is part of the migration of openCV from KDE:Extra to science.

As openCV 4 has removed some of its deprecated API and requires a C++11 compiler (and thus may be imcompatible to some projects requiring C++03) openCV 3.4 is kept in parallel.

This is identical to the openCV 3.4.3 package from KDE:Extra, plus 3 minor maintenance updates.

- Update to 3.4.6
Maintenance release, no changelog provided
- Update to 3.4.5
Maintenance release, no changelog provided
- Update to 3.4.4
OpenVINO™ toolkit components were updated to the R4 baseline
- Drop obsolete opencv-lib_suffix.patch