Explicitly state components of OpenCV
Currently we only check if OpenCV 4.2 is installed on the system, but it is not stated which parts we actually need. This leads to compile errors when one of the libraries is missing. Better would be to report missing libraries at the configuration. An other positive side effect is, that the installer size (and installation size) will probably decrease as not installed OpenCV libraries would be copied but only the required once.
In our case currently we need the following OpenCV components:
corecalib3darucovideovideoiotrackinghighgui
Edited by Schrödter, Tobias