- Multiple bugfixe linked to query fragments

- Added a new SearchRequest package to handle search request efficiently

src/Query/OrderBy.php

@@ -10,12 +10,14 @@ class OrderBy extends Fragment {
     public function set(array $order) : self
     {
         $this->orderBy = $order;
+        
         return $this;
     }
 
     public function add(string $field, ? string $direction = null) : self
     {
         $this->orderBy[] = [ $field, $direction ];
+        
         return $this;
     }
 
@@ -23,6 +25,7 @@ class OrderBy extends Fragment {
     {
         $list = array_map(function($item) {
             list($field, $direction) = $item;
+            
             return $field . ( $direction ? " $direction" : "" );
         }, $this->orderBy);