Align VUI with specification and clean up SW manual

See merge request jvet/VVCSoftware_VTM!1220

- fixes missing/wrong syntax
- adds example config files for VUI
- Align software manual with software conditions, removed VUI parameters are removed in !1217

JVET-P0597: Generalized cubemap projection SEI message

See merge request jvet/VVCSoftware_VTM!1218

update readme file to clarify purpose of VTM software and clarify status of MSYS2 build

See merge request jvet/VVCSoftware_VTM!1216

Add compliance check for coeff_delta_idx in ALF #798

See merge request jvet/VVCSoftware_VTM!1214

Improvements on technical debt

See merge request jvet/VVCSoftware_VTM!1215

- compile fix for clang/macOS
- remove unused parameters
- fixes for the software manual

Fix for #788: chroma QP for remote CU is wrong if the remote CU is local dual-tree

See merge request jvet/VVCSoftware_VTM!1198

Fix #799: Fix uninitialized DC for predicted scaling list when scaling_list_pred_id_delta equal to 0

See merge request jvet/VVCSoftware_VTM!1211

JVET-P0184 : Decoding process for generating unavailable reference pictures

See merge request jvet/VVCSoftware_VTM!1210

fixed field coding and added cfg/field/x.cfg

See merge request jvet/VVCSoftware_VTM!1147

Add cfg parameters for SPS subpicture syntax

See merge request jvet/VVCSoftware_VTM!1203

Fix reconstruction file creation when VPS is send with vps_max_layers_minus1 = 0

See merge request jvet/VVCSoftware_VTM!1207

Change "Author(s)" to  "Editors" in software manual

See merge request jvet/VVCSoftware_VTM!1213

Modified software manual related to ALF: remove SliceLevelAlf and add ALF

See merge request jvet/VVCSoftware_VTM!1212

# Conflicts:
#   source/Lib/CommonLib/TypeDef.h

JVET-P0182: Add check to verify if vps_independent_layer_flag[GeneralLayerIdx[nuh_layer_id...

See merge request jvet/VVCSoftware_VTM!1204

Philip Cowan authored 5 years ago and Karsten Suehring committed 5 years ago

Add check to verify if vps_independent_layer_flag[GeneralLayerIdx[nuh_layer_id ]] is true, then inter_layer_pics_present_flag must be false.

JVET-P0135: add constraint on vps_direct_dependency_flag[ i ][ j ]

See merge request jvet/VVCSoftware_VTM!1202

Fix RefPicIdentifier for LT picture after merge of 1c49c512

See merge request jvet/VVCSoftware_VTM!1206

at least one value of j => There has to be at least one value of j ...

# Conflicts:
#   source/Lib/CommonLib/TypeDef.h

Add a constraint to require that when vps_independent_layer_flag[ i ] is equal to 0 there shall be at least one value of j such that the value of vps_direct_dependency_flag[ i ][ j ] is equal to 1.

JVET-P0185: Inference rule for vps_max_layers_minus1 when not signaled and...

See merge request jvet/VVCSoftware_VTM!1193