#146 Admins and update_all_parcels.py

* extends admin backend
    * adds found_in_codelists to KonovaCodeAdmin to see where a KonovaCode can be found in
    * improves rendering of after_states and before_states for all AbstractCompensationAdmins
    * adds geometry_id to all major datatype admin backends
    * adds st_area like calculation to geometry admin backend
* update_all_parcels
    * orders geometries by size (small to big) to process smaller geometries first and bigger later
    * adds more output to command for a better overview of what is just going on

codelist/admin.py

@@ -33,6 +33,7 @@ class KonovaCodeAdmin(admin.ModelAdmin):
         "is_selectable",
         "is_leaf",
         "parent",
+        "found_in_codelists",
     ]
 
     search_fields = [
@@ -42,6 +43,12 @@ class KonovaCodeAdmin(admin.ModelAdmin):
         "short_name",
     ]
 
+    def found_in_codelists(self, obj):
+        codelists = KonovaCodeList.objects.filter(
+            codes__in=[obj]
+        ).values_list("id", flat=True)
+        codelists = "\n".join(str(x) for x in codelists)
+        return codelists
 
 #admin.site.register(KonovaCodeList, KonovaCodeListAdmin)
 admin.site.register(KonovaCode, KonovaCodeAdmin)