Librem5 OpenCV Example?

[dcz]

@ppisa

It seems that in actual Millipixel source Librem5 / millipixels · GitLab the exposure and gain are controlled over IOCTLs but focus is controlled with help of media-ctl calls. @dcz can confirm that, I think.

This was done for simplicity, but it will change with the transition to libcamera.