As requested, a description of the -opl option has been added to "doc/software-manual.tex" and the line "m_oplFilename += ".opl" has been removed.

Fix #853: cbf_comp on Cr component when using intra_bdpcm_chroma_flag

See merge request jvet/VVCSoftware_VTM!1321

JVET-Q0414 method2: a constraint on gdr_pic_flag based on gdr_enabled_flag

See merge request jvet/VVCSoftware_VTM!1318

Detail
- Change EG3 to EG5 in palette escape coding.

JVET-Q0444: Conditional signaling of sps_affine_amvr_enabled_flag

See merge request jvet/VVCSoftware_VTM!1294

JVET-Q0436: Cabac Zero Word modification and JVET-P0188: MinCr encoder check

See merge request jvet/VVCSoftware_VTM!1313

JVET-Q0781: use two flags to signal the use of intra/inter slice(s) in the PH

See merge request jvet/VVCSoftware_VTM!1277

JVET-Q0169: AH9/AH12: Bitstream conformance requirements on subpicture ID

See merge request jvet/VVCSoftware_VTM!1311

JVET-Q0115: Move POC to Picture Header

See merge request jvet/VVCSoftware_VTM!1300

JVET-Q0438: Monochrome bug fixes

See merge request jvet/VVCSoftware_VTM!1302

Added syntax element display_elemental_periods_minus1 to the picture
timing SEI message
Check that the frame field information SEI message signals the same
value as the picture timing SEI message

Disallow subpic_info_present_flag and res_change_in_clvs_allowed_flag to
be both equal to 1
Name of these two syntax elements aligned with VVC Draft