Beautifier: Long live uncrustify

By accident uncrustify's option page got kicked during a refactoring. This amends 9a7e7f7d4.

Change-Id: I27aba7bcf689b20763446fd445f4855050669865
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/beautifier/uncrustify/uncrustify.cpp

@@ -87,6 +87,8 @@ bool Uncrustify::initialize()
     connect(m_settings, &UncrustifySettings::supportedMimeTypesChanged,
             [this] { updateActions(Core::EditorManager::currentEditor()); });
 
+    new UncrustifyOptionsPage(m_settings, this);
+
     return true;
 }