New configuration file for rectangular slices

See merge request jvet/VVCSoftware_VTM!1374

New configuration file can be used in conjunction with existing AI, RA and LD
configuration files. It is to be used with more common 1920x1080 picture size.

Fix for Ticket #880: In setting POC for dependent layers in DecLib.cpp

See merge request !1370

bugfix of sps_act_enabled_flag signaling

See merge request !1369

Bug fix for no initialization of subPic info in SPS

See merge request !1368

Fix for Ticket #866 - Chroma deblocking issues with max transform size

See merge request jvet/VVCSoftware_VTM!1335

Fix for Ticket #867 - Chroma deblocking issue with ISP

See merge request !1336

Fix for Ticket #822 - Deblocking with VB and ISP

See merge request !1334

Fix JVET-Q0504: fix the mismatch between encoder and decoder

See merge request jvet/VVCSoftware_VTM!1338

Refactoring/Bugfix: PPS parsing and subpictures

See merge request !1366

- don't use SPS in PPS parsing/writing
- create a function for decoder parameter set consistency checks
- fix bug with JVET-Q0413 subpicture parsing changes
- may contain traces of coding style fixes

JVET-Q0416 aspect 1: on wraparound offset signaling

See merge request !1308

JVET-Q0200: Update location for signalling WP and add checks for enforcing conformance constraints

See merge request !1359

For independent layers, use POC MSB cycle signalling. In the SPS, there is a flag to control whether picture header has ph_poc_msb_cycle_present_flag, and a length in the SPS. When ph_poc_msb_cycle_present_flag is equal to 1, the POC MSB cycle, u(v) coded, is signalled in the picture header. When POC MSB cycle is present, the POC MSB of the picture is set to poc_msb_cycle * MaxPicOrderCntLsb.

JEVT-Q0505: Disabling chroma scaling list signaling for 400 color format

See merge request jvet/VVCSoftware_VTM!1315

JVET-Q0786: PTL part of VPS syntax

See merge request !1343

Bugfix for JVET-Q0172

See merge request !1341