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
* Replace scroll algorithm with just using offset
* WIP
* Text is now shown properly on each node
* WIP
* Scaling well WIP
* Fix positioning for Graph
* Overview properly displays Rect WIP
* Rect in overview moves along with the mouse WIP
* Overview rect properly moves WIP
* mouse properly moves WIP
* in middle of fixing resizing WIP
* scaling issue WIP
* Properly zooms
* almost done
* Edge width fixed for the overview
* Fixed a small bug
* Clean up
