Allow Spatial Map Series to be based on Map Notes

[AlfredBaldenweck]

Pro 3.5 at time of writing

Please let us create map series off of Map Notes (without having to re-add them to the map)

Steps to reproduce this issue:

1. Create new map in new project
2. Add map notes
3. Populate one of the map notes (point, line, or polygon) with at least two records
4. Insert layout
5. Add map from step one in a map frame to layout
6. Try to add map series
   1. Can't.
   2. 
7. Add a non-map note feature layer to map
8. Try to add map series
   1. Success
   2. 

Strangely enough, if you add the same map notes in again as a new layer, it works just fine for them. 

This is super weird. I use map notes all the time for a quick "I need to draw something" and occasionally that something has to be printed in a map series. I'm not sure if this is a bug or not, but I shouldn't have to re-add my map notes to use them in a map series. Could we please change this behaviour?