[jed4] Ability to merge disbrution types from current JED to combined listing

[JazParkyn]

Provide a ‘Request Merge’ option for extension developers. Form to require a new name and description to be used the merged extension, instead of combining descriptions from the free and paid versions. Request to be reviewed and actioned by Listing Specialist or Team Management.

This needs to be defined in a lot more detail - suggest that it is discussed when the views have progressed further. The SEO team will also need to be consulted on how best to handle the URL redirections.