Minor fix for placing storage items in Stratis

On stratis, for some reason the garages do not show up when using
"nearestObjects". This fix makes it so that you can place proxy objects of
type "Sign_Arrow_Yellow_F" near cities, and the storage boxes are put at
those locations.
Merge branch 'Development_main_addons' into extDB_beta_addons
Merge remote-tracking branch 'upstream/extDB_beta_addons' into private_storage
Fix wrong class name
Merge branch 'Development_main_addons' into extDB_beta_addons
Merge remote-tracking branch 'upstream/extDB_beta_addons' into private_storage