Fix all base notes that are used in automations and their corresponding
automation values. Base notes that are automated are stored as elements
in the save file whereas non-automated base notes are stored as
attributes. So far the method `upgrade_extendedNoteRange` only upgraded
the non-automated base notes that are stored in attributes. This commit
fixes the automated ones which are stored in elements.
The fix works as follows:
* Collect all base note elements.
* Store their ids in a set so that we can later identify automations
that reference them.
* Collect all automation pattern and check if they reference a base
note.
* Adjust the values and out values of all automations that reference
base notes.
Note: for many older files the out values will be introduced by the
upgrade `method upgrade_automationNodes` and do not appear in the files
themselves!
20c83e5021