Adding annotation balloons to page with block items

thanks @lando.schumpich

it’s still quite simple in its current state though, it’s more a concept. But anyway here it is:

annotationBalloon.py (4.4 KB)
One of the ideas for next steps would be not generate the parts list directly, but rather recording it.
The list that is generated includes item count that updates automatically when adding more of the same blocks.