Bugfix for Ticket #1291: Mismatch between spec and software in BPSEI and PTSEI
- bp_cpt_cnt_minus1 in BPSEI not being parsed.
- Number of signalled pt_du_common_cpb_removal_delay[i] and pt_du_cpb_removal_delay_increment_minus1[i][j] not being signalled correctly.
- Inference rule for pt_sublayer_delays_present_flag[i] when bp_max_sublayers_minus1 is 0
- Initialization of m_nuhLayerId = 0 in initSlice