- remove picture partitioning section from CTC file (so that they can be combined wit partitioning in any order)
- remove random access parameters from partitioning examples (combines well with AI or LD too)
- add examples for three slices with slice layout inference from subpictures and without
- try to make naming somewhat consistent

New configuration file can be used in conjunction with existing AI, RA and LD
configuration files. It is to be used with more common 1920x1080 picture size.