* Added an InferenceBlock (WIP)

* Pipeline executions can now be canceled

* Tags port moved from ML method to learning block

* New draft items will now be assigned tags matching their primary color on creation

* Lots of changes in the file hierarchy

* Added a helper class to store image reference selections

* Tags are now intelligently assigned when generating the tags bitmap based on colors and layer tags

* The output block now has an out port for the (merged) tags bitmap

* Some smaller improvements and fixes

* Added a Save Image block
* Image tags can now be automatically generated for newly used colors

* Fixed a bug when loading layers