Create snippet to load set-data from folder with txt-files
Start: Add functions to read sets from files to main script

The functions are now included but the main script still creates the checkboxes from another list. Next step is to get rid of the list and create the checkboxes only from files.
Create the checkboxes only from files
Clean up main file
Merge branch 'develop'

Conflicts:
	SetOrganizer_basics.py - used the newest file