Fix:  Related to RPR and GDR

See merge request !2295

Fix: RPR crash caused by picHeader creation/deletion

See merge request !2297

Fix compiling when enabling HDR tools

See merge request !2302

Clean up motion interpolation functions

See merge request !2301

Fix weighting when processing chroma components in ALF

See merge request !2299

Use strong enum type for filter index

See merge request !2300

Fix variable names and remove unnecessary check

See merge request jvet/VVCSoftware_VTM!2298

Simplify covariance computation in ALF by premultiplying constants

See merge request jvet/VVCSoftware_VTM!2293

JVET-AA0102 and JVET-AA2027: SEI Processing Order

See merge request !2294

Avoid "using namespace" in header files

See merge request !2296

Reduce compile time for VC

See merge request !2290

JVET-AA0054_PROPOSAL2: Signal 1 flag instead of 2 flags to specify output chroma format information

See merge request !2286

Check layer IDs in addition to POCs

See merge request !2288

Ref pics from L0 and L1 can both be ILRP from different layers.
In this case they have the same POC (equals to current POC) but
different layer ID.
So, they are different pictures.

https://jvet.hhi.fraunhofer.de/trac/vvc/ticket/1567

Fix #1566: run ISP related check only when in ISP mode

See merge request !2287

JVET-A0110: Adding support for Phase indication SEI message

See merge request !2285

JVET-AA0067_NNPFC_SEI_FIX

See merge request !2284

JVET-AA0100-fix: Fixing TypeDef guard issue for AA0100 and AA0056

See merge request !2283

fixed issue with AA0100 and AA0056 code living in mutually exclusive code guards in EncApp.cfg. Moved AA0100 code within AA0056's code guards, while retaining AA0100's guards

JVET-AA0056: AHG9: On syntax gating in the neural-network post-filter characteristics SEI message

See merge request !2280

made more descriptive TypeDef for JVET_A0100. Resolved issue with variable names starting lower case