[3.0.x] codec: dav1d: Handle HDR metadata
This should potentially fix #27832 (closed) since we are not handling HDR metadata for VLC3.X,
I am yet to get macOS builder working, probably will try to hook up the CI to get the artefacts and test it, not sure if that is possible.
Secondly, we should backport a few other patches in 4.x for dav1d to 3.x like handling Framerate/captions since AV1 seems to be getting more traction from end-users.