First stage to support HEIC images from Apple devices.

New image loader based on libheif+libde265. Only loading image is supported for the moment.
Writing image requires libx265 dependency and is not yet implemented.
HEIC loader support ICC color profile, Exif, and XMP metadata handling.
Code is not yet optimized. Still TODO

* add progress observer
* load metadata stage without to decode full image.

HEIC is now a native format, blacklisted with ImageMagick and QImage loader

CCBUGS: 411027
CCBUGS: 393408