Sometimes it is not necessary to include the whole Cutter.h file
Hence, it's been splitted so you can include only what you require
E.g. #include "core/CutterCommon.h" to have access to the common types
* Segments implemented
* Not util anymore but common
* Fixed the strings to be shown as the headers better
* Quick Filter functionality is supported on both Section and Segment Widget
* QuickFilter should basically be on but for some widgets, they should be off
