* sort block tree views
* fix naming validation for block scheduling
* show deco group name in deco editor
* show block group name in block editor
* show template group name in template editor
* show deco template group name in deco template editor
* fix template rename crash
* fix block rename crash
* fix deco template rename crash
* fix validation in new form layout
* pin mediatr to last oss version
* update dependencies
* cleanup code in core
* cleanup code in ffmpeg
* cleanup code in infra
* cleanup code in scanner
* cleanup code in application
* cleanup main code
* cleanup test code
* solution-wide code cleanup
* add deco groups and decos; set default deco for block playout
* use block playout default deco for watermark
* add deco templates, groups and deco template editor
* associate deco template with playout template
* use deco template item watermark for playback
* update changelog for decos
