matroskamux: Write MasteringMetadata and Max{CLL,FALL}

Enable muxing with HDR meta data if upstream provided it
8 jobs for support-hdr in 39 minutes and 12 seconds (queued for 2 minutes and 25 seconds)
Status Job ID Name Coverage
  Preparation
passed #124777
gst indent

00:00:16

passed #124776
manifest

00:00:18

 
  Build
passed #124778
build fedora x86_64

00:03:15

 
  Test
passed #124779
check fedora

00:04:20

 
  Full Builds
passed #124780
build android arm64 api28

00:02:54

passed #124782
build cerbero cross win32

00:09:09

passed #124783
build cerbero cross win64

00:11:03

passed #124781
build cerbero fedora x86_64

00:07:53