JVET-Q0629: Removal of 4x4 blocks in palette mode

See merge request !1327

JVET-Q2014: additional cfg files for lossless ctc

See merge request jvet/VVCSoftware_VTM!1340

JVET-Q0814: Decoded Picture Buffer

See merge request jvet/VVCSoftware_VTM!1289

Fix for decoding issue in chroma format 400

See merge request jvet/VVCSoftware_VTM!1339

Detail
- Disable palette mode for 4x4 blocks.

Fix #856: chroma BDPCM for monochrome

See merge request jvet/VVCSoftware_VTM!1325

Disable JVET_O1143_SUBPIC_BOUNDARY because of decoder seg fault

See merge request jvet/VVCSoftware_VTM!1331

Fix #864: Set deblocking_filter_override_enabled_flag to 0 when not present

See merge request jvet/VVCSoftware_VTM!1332

JVET-O1143: Motion compensation and loop filters at sub-picture boundaries

See merge request jvet/VVCSoftware_VTM!1305

Fix #863: don't access PS data before it is available

See merge request jvet/VVCSoftware_VTM!1330

Add support for writing conformance log file

See merge request jvet/VVCSoftware_VTM!1299

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

JVET-P0097: Removing dependencies on VPS in single layer bit-streams

See merge request !1329

JVET-Q0183: Signal the max block size in SPS and conditionally signal min_qp_prime_ts_minus4

See merge request jvet/VVCSoftware_VTM!1328

Merge branch 'JVET-Q0179_ScalingWindowConstraintForMemoryBandwidth' of https://vcgit.hhi.fraunhofer.de/peterchuang/VVCSoftware_VTM into JVET-Q0179_ScalingWindowConstraintForMemoryBandwidth

# Conflicts:
#	source/Lib/CommonLib/TypeDef.h
#	source/Lib/EncoderLib/EncLib.cpp

Printing a warning at the beginning in case that picture sizes and the scaling window are defined that could potentially exceed the constraint