* Implemented culture based authorization for content * Implemented culture auth for create/update of documents * Applied culture authorization to dictionary create/update * Added an integration test to test an assumption about the ContentTypeEditingService.CreateAsync method * Fix processing when result is already false; * Apply suggestions from code review Co-authored-by: Nikolaj Geisle <70372949+Zeegaan@users.noreply.github.com> * Refactor method to async + clarify and consilidate comments regarding dictionary locks --------- Co-authored-by: Sven Geusens <sge@umbraco.dk> Co-authored-by: Nikolaj Geisle <70372949+Zeegaan@users.noreply.github.com>