Members map 1.2.1

Fix missing column in xf_user_group table

Bug fix:

• Set Nominatim as [Experimental]
• Fix 403 on Nominatim requests by passing custom user-agent.

New features:

• Add Nominatim User-Agent option
• Add Importer for [XT] Membermap

New feature

• New option: Usergroup mode -> You can choose which usergroup marker will be display between secondary or primary group.
• New usergroup option: Priority -> You can definine priority of the usergroup

Fix bugs:

• Fix error with deleted users

Fix bugs:

• Unnecessary vendor requirements