- More work done on Update, Insert and Delete clause

- Added TOP property to select and delete to fit MSSQL limit's term.
- Added a new interface allowing object's manipulation on save() and load() queries

src/Query/Select.php

@@ -10,9 +10,9 @@ class Select extends Fragment {
 
     public bool $union = false;
 
-    public bool $top = false;
+    public ? int $top = null;
 
-    protected $fields = [];
+    protected array $fields = [];
 
     public function set($fields) : self
     {
@@ -37,7 +37,7 @@ class Select extends Fragment {
         return $this->renderSegments([
             ( $this->union ? 'UNION' : false ),
             'SELECT',
-            ( $this->top ? 'TOP' : false ),
+            ( $this->top ? sprintf('TOP (%s)', $this->top) : false ),
             implode(', ', $this->fields)
         ]);
     }