Fix for Ticket #367 IBC and Triangle with Weighted Prediction

See merge request !683

  - Prevent weighted prediction related processing when IBC or triangle prediction is enabled for the PU.

JVET-O0526: Setting the minimum CTU size to 32x32.

See merge request !803

Bug fix of encoder deblocking optimization

See merge request !796

JVET-O0925: simplifications of MIP

See merge request !777

- fixed build error

fix #400: fix firstNZPos derivation

See merge request !755

Cleanup dead condition

See merge request !621

JVET-O0119: Base palette mode for 4:4:4

See merge request !759

Resolved conflicts

Bug fix for LFNST encoder search

See merge request !801

Fix #426: Chroma QP mapping tables - incorrectly initialized arrays for some...

See merge request !800

Fix #426: Chroma QP mapping tables - incorrectly initialized arrays for some encoder configurations.

- Fix for the case that uninitialized or invalid best cost values are referred during search candidate selection

Integration of JVET-O0502: Proposed ISP Clean-up

See merge request jvet/VVCSoftware_VTM!788

initialize m_vpduX and m_vpduY in Reshaper class

See merge request !798

numCandminus1_step is always positive

Add compliance check on AlfCoeffs

See merge request !570

Fix for Ticket #418 Mismatch with spec on LfnstDcOnly derivation and lfnst_idx parsing

See merge request !795

JVET-O0376: add sps_joint_cbcr_enabled_flag

See merge request !764

Refine SIMD implementation of JVET-O0304 (Reduction of number of multiplications in BDOF)

See merge request !797

Fix for Ticket #373 DMVR SAD Doubled

See merge request !767

  - Reduce DMVR SAD cost by 2x to match spec.
  - Adjust BDOF-Disble and Zero-Cost thresholds accordingly.

This part was originally integrated in HEVC SCM8.0 but was later removed as a bugfix in SCM8.3.....

Fix #417: fix regular_merge_flag parsing condition

See merge request !794

Encoder side bug fix: the encoder speed up in palette (which bypass INTRA mode check in inter slice if palette mode is better than INTER mode)
shouldn't be applied on 4x4 blocks since JVET-N0266 disabled INTER mode in 4x4 blocks.
Without the fix, intra mode will always be skipped in 4x4 blocks in inter slice if IBC is disabled in SPS.

BugFix of encoder deblocking optimization: add initialization of m_ctuXLumaSamples and m_ctuYLumaSamples, align with 4x4 deblocking