JVET-Q0751: Constraints and properties of mixed nal unit types

See merge request jvet/VVCSoftware_VTM!1462

JVET-Q0218 Proposal1 : conditionally signal tile_idx_delta_present_flag in slice signalling

JVET-Q0346 aspect 2: scaling list used in sh

See merge request jvet/VVCSoftware_VTM!1457

JVET-Q0222: Modifications to subpicture information signalling

See merge request jvet/VVCSoftware_VTM!1455

JVET-O0397: Subpicture extraction process

See merge request jvet/VVCSoftware_VTM!1470

Functional stage: allows extraction of subpicture bitstreams that can be decoded. This includes:
- rewriting of tile structure
- rewriting of slice structure
- rewriting of picture dimensions

HRD related parts are not included yet

Update cfg files to support the parameter name change

See merge request jvet/VVCSoftware_VTM!1469

Fix Ticket #924: Add encoder configuration checks for MinQTChromaISlice

See merge request jvet/VVCSoftware_VTM!1435

Fix #857: Mismatch for filter length derivation of sub-block motion edges.

See merge request jvet/VVCSoftware_VTM!1466

Fix Ticket #966: Incorrect mv clipping for subpictures in clipMv function

See merge request jvet/VVCSoftware_VTM!1464

  - Add missing "xEdge is equal to 1" and "yEdge is equal to 1" conditions related to eq. 1255 and 1267 in text.

function

BitstreamExtractor: fix parameter set access after duplicates

See merge request jvet/VVCSoftware_VTM!1460

Non-420 per sequence/class configuration files

See merge request jvet/VVCSoftware_VTM!1444

- after storing a *PS in the parameter set manager, the object may be deleted
- retrieve a PS back after storing
- add more explicit warnings in comments

BitstreamExtractor: revert UI changes

See merge request jvet/VVCSoftware_VTM!1459

- allow target OLS index and temporal sublayer id to be equal to -1 to disable extraction
- align short option for TargetOutputLayerSet with DecoderApp (-p)

JVET-P0118: OLS bit stream extraction

See merge request jvet/VVCSoftware_VTM!1458

Fixes related to slice lmcs enabled flag (JVET-Q0346 aspect 1)

See merge request jvet/VVCSoftware_VTM!1454

Encoder Bug fix for EncDbOpt

See merge request jvet/VVCSoftware_VTM!1452