Split API classes and interfaces

docs/api/MongoDB/Query/Query.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace MongoDB\Query;
+
+final class Query
+{
+    /**
+     * @param array|object $query    Query document
+     * @param array|object $selector Selector document
+     * @param integer      $flags    Query flags
+     * @param integer      $limit    Limit
+     * @param integer      $skip     Skip
+     */
+    public function __construct($query, $selector, $flags, $skip, $limit)
+    {
+        // ...
+    }
+}