- Added some SearchRequest attributes ; now it's even simpler to add searchable fields

- Began decoupling of QueryBuilder from native MySQL method ; some works needs to be done on for the Repository object splitting also.

src/Adapter/SqlAdapterTrait.php

@@ -7,7 +7,7 @@ use Ulmus\{Common\Sql,
     Entity\InformationSchema\Table,
     Migration\FieldDefinition,
     Repository,
-    QueryBuilder,
+    QueryBuilder\SqlQueryBuilder,
     Ulmus};
 
 trait SqlAdapterTrait
@@ -19,7 +19,7 @@ trait SqlAdapterTrait
 
     public function queryBuilderClass() : string
     {
-        return QueryBuilder::class;
+        return SqlQueryBuilder::class;
     }
 
     public function tableSyntax() : array