Add actor travel destinations to types.Actor.record.servicesOffered

This adds Travel destinations to the services table. It is a subtable.

For most travel NPCs, it will contain 4 items.

Each item will have position, rotation, and cellName.

For example, in the console you can enter selected.type.record(selected).servicesOffered["Travel"][1].cell to see who their first destination is.

This would be useful for mods that change fast travel, or allow you to add new destinations.