Way to set type

#186 no way to set type unless workaround

Author: sshilko

src/SphinxQL.php

@@ -223,6 +223,15 @@ public function __construct(ConnectionInterface $connection = null)
     {
         $this->connection = $connection;
     }
+    
+    /**
+     * Sets Query Type
+     *
+     */
+    public function setType(string $type)
+    {
+        return $this->type = $type;
+    }    
 
     /**
      * Returns the currently attached connection