MODNCIP-44: Support inventory 12.0 in ModuleDescriptor "requires"

Add version 12.0 to the list of supported inventory interface versions in ModuleDescriptor "requires" section.

DELETE /inventory/instances and DELETE /inventory/items have been deleting all records.

MODINV-731 changed them to delete records by CQL, this requires a major interface version bump.

mod-ncip doesn't need any code change for this because it doesn't use these two DELETE APIs.

descriptors/ModuleDescriptor-template.json

@@ -97,7 +97,7 @@
       },
       {
         "id":"inventory",
-        "version":"10.2 11.0"
+        "version":"10.2 11.0 12.0"
       },
       {
         "id":"circulation",