JVET-Q0443: Implement MinCR check for subpictures using Subpicture SEI message

See merge request jvet/VVCSoftware_VTM!2090

Fix #1492: Values in cfg_sliFractions and cfg_sliNonSubpicLayersFractions should have a range of 0 to 255

See merge request jvet/VVCSoftware_VTM!2089

cfg_sliNonSubpicLayersFractions should have a range of 0 to 255 to match
syntax elements sli_ref_level_fraction_minus1 and
sli_non_subpic_layers_fraction

Fix EncDbOpt=1: make sure reference luma block has same size as chroma block

See merge request !2088

Fix TestSAODisableAtPictureLevel=1: reset picture when SAO disabled for picture

See merge request !2087

Fix TMVPMode=2: don't search affine candidates when there are none

See merge request !2086

JVET-V0111: Decoding Unit Information

See merge request !2085

JVET-V0108: Colour transform information SEI

See merge request !2081

JVET-U0082 SDI SEI and three other SEIs: MAI, ACI, and DRI.

See merge request !2079

JVET-U0084: EDRAP SEI message

See merge request !2080

Fix for Ticket#1489 - Cleanup of variable names for m_iSourceWidth and m_iSourceHeight

See merge request !2082

JVET-V0061 display orientation SEI message

See merge request jvet/VVCSoftware_VTM!2064

Fix build error with GCC 11.1

See merge request jvet/VVCSoftware_VTM!2078

Add build server for Ubuntu 20.04

See merge request jvet/VVCSoftware_VTM!2077