[FEATURE] Support default playlist on scene activation

[timartiny]

Is your feature request related to a problem? Please describe.
When creating an adventure module, the default playlist is forgotten on importing a scene if the playlist is only saved in a compendium. Scene packer solves this for journals, but not playlists.

Describe the solution you'd like
I'd like an extension of Scene packer to preserve the default playlist when importing a scene, if the playlist has been imported from a compendium.

Describe alternatives you've considered
Alternative solutions are to just put "notes" in the journal entries for each scene of how to reconstruct--not a Scene Packer feature.

[sneat]

@timartiny feature added in v2.1.1

You will need to re-export your playlists to your compendium for the linking to work correctly.