JVET-P0978 RPL constraint checks

See merge request jvet/VVCSoftware_VTM!1430

Fix Ticket #922: Decoding crash

See merge request jvet/VVCSoftware_VTM!1434

Changes to the BD estimation to use lengthUvlc instead of lengthGolomb

See merge request jvet/VVCSoftware_VTM!1432

Fix Ticket #917: length of slice_subpic_id

See merge request jvet/VVCSoftware_VTM!1429

JVET-Q0221: Decoding Unit Parameter Signalling

See merge request jvet/VVCSoftware_VTM!1417

Fix #919: Add check parameter for combination of Affine Amvr and IMV

See merge request jvet/VVCSoftware_VTM!1433

Fix trace strings for VPS/DCI

See merge request jvet/VVCSoftware_VTM!1425

Fix long-term reference picture issues.

See merge request jvet/VVCSoftware_VTM!1426

Fix for #899: Deblocking of cu_cbf_flag=0 CUs with implicit transform splitting.

See merge request jvet/VVCSoftware_VTM!1400

New bitstream extractor app (stub to be extended)

See merge request jvet/VVCSoftware_VTM!1428

Features so far:
- re-write parameter sets (for modification in OLS/subpicture extraction)
- extraction based on temporal layers
- print OLS info

To be implemented:
- OLS extraction
- subpicture extraction

Update for implementation of virtual boundary signalling

See merge request jvet/VVCSoftware_VTM!1422

Additional fixes for ticket #891

See merge request jvet/VVCSoftware_VTM!1423

   - Some LTRP may not be marked in checkThatAllRefPicsAreAvailable( ) after Fix for Ticket 891, so adding LTRP marking to applyReferencePictureListBasedMarking( ) as well.
   - Fix for LTRP delta POC MSB when there are STRP between two LTRP.

Add a conditional check on the encoder cfg

See merge request jvet/VVCSoftware_VTM!1424

* align with spec
* align encoder/decoder
* fix header to trace DCI instead of DPS

Fix: add NoOutputBeforeRecoveryFlag equal to 1 check for CLVSS PU

See merge request jvet/VVCSoftware_VTM!1397

Update for implementation of multiple slices in tile: Aligning S/W implementation with spec text after some bug fixes

See merge request jvet/VVCSoftware_VTM!1421