fixes for layerId setting in the scaled reference pictures, setting of PPS id, and RPL construction with ILRP

- new pattern: create a class to collect all parameters  related to this SEI
- existing code can be refactored to use the same pattern for grouping to avoid endless assignments

Note: fixes executable flags for some unrelated config files

Encoder bug fix for HRD, whereby the CPB removal delay delta indexes for
temporal sublayers are disabled for the last GOP of the picture if it is
not a full GOP

fix building error

further clean up

further fix

correct hrd param class,fix OlsHrdParams

first version of HRD.(VPS does not include the ols dementional), need to add another OLS demention)

- fixes IntraPeriod>0 cases
- add printing of VCL NAL unit type (in addition to slice type) to stdout
- fix for RPL for STSA in RA + IntraPeriod=-1 case from Hendry