Test "near" queries executed in memory

Rework setup of the Operation Hooks test suite for memory connector
so that the "unoptimized" variant disables not only atomic CRUD
operations, but also geo queries.

This way we can test both "near" querying implementations:
 - When the connectors supports "near" queries natively.
 - When "near" queries are executed at LoopBack side in-memory.

test/memory.test.js

@@ -917,6 +917,9 @@ describe('Unoptimized connector', function() {
   ds.connector.findOrCreate = false;
   ds.connector.upsertWithWhere = false;
 
+  // disable native location queries
+  ds.connector.buildNearFilter = false;
+
   require('./persistence-hooks.suite')(ds, should, {
     replaceOrCreateReportsNewInstance: true,
   });