- Started working on decoupling QueryBuilder from SqlQueryBuilder

- WIP on SearchRequest attributes
- Began working on removing 'Ulmus' class
- WIP on removing SQL query building from Repository (which will become SqlRepository)

src/Repository.php

@@ -29,7 +29,7 @@ class Repository
 
     public array $events = [];
 
-    protected Query\QueryBuilderInterface $queryBuilder;
+    protected QueryBuilder\QueryBuilderInterface $queryBuilder;
 
     protected EntityResolver $entityResolver;
 
@@ -383,7 +383,7 @@ class Repository
         }
     }
 
-    public function removeQueryFragment(null|Query\Fragment|string|array $fragment) : self
+    public function removeQueryFragment(null|Query\QueryFragmentInterface|string|array $fragment) : self
     {
         foreach((array) $fragment as $item) {
             $this->queryBuilder->removeFragment($item);