Fix to signal bitrate and CPB size in HRD parameters
Fix to make sure the PT SEI is generated for every picture

Retrained on CTC bitstreams generated with VTM 9.0rc1

store sub-picture numbers, sizes, and locations with a picture, so that they can be fetched directly from redPic

fix msan error reported on accessing nalu.m_nuhLayerId (source/App/DecoderApp/DecApp.cpp:199)
created at source/App/DecoderApp/DecApp.cpp:77

Includes:
- added flag
- minor updates for variable names
- update for trace strings according to JVET-R2001-vA

JVET-R0162 proposal1: change the signaling of wraparound offset to picture width minus wraparound offset