Fix #1475: Use SMultiValueInput<uint32_t> instead of SMultiValueInput<uint8_t>

See merge request !2042

Fix naming and error messages for VLC length calculation

See merge request !2041

Fix CHECK statements

See merge request !2038

lengthUVLC() is still duplicated in scaling list and ALF code

Remove unused variable

See merge request !2039

Fix braces and indentation

See merge request !2040

Remove trailing spaces

See merge request !2037

Fix non_ref_pic compliance check

See merge request !2036

Picture Header data are not valid for reference pictures as they are
overwritten when parsing each picture header.

fix initialization of m_initialCpbRemovalOffset in SEIBufferingPeriod class

See merge request jvet/VVCSoftware_VTM!2035