removed binary decision tree (seems to be a bit of an overkill at this stage of the project) as a preparation for the integration of M0421

removed binary decision tree (seems to be a bit of an overkill at this stage of the project) as a preparation for the integration of M0421

Patch provided by Rickard Sjöberg <rickard.sjoberg@ericsson.com>

fixed encapsulation in previous commit, corrected some conditions in previous commit, replaced remaining tabs with spaces, corrected some indentations

- Fix coding for HEVC style tiles
- Re-enable tiles

Original patch by: Rickard Sjöberg <rickard.sjoberg@ericsson.com>