Fix BlackGui header includes

* Include only what is used
* Use forward declaration when possible
* Sorted includes

refs #598

src/blackgui/components/dbdebugdatabasesetup.cpp

@@ -7,10 +7,13 @@
  * contained in the LICENSE file.
  */
 
+#include "blackgui/components/dbdebugdatabasesetup.h"
 #include "blackgui/guiapplication.h"
 #include "dbdebugdatabasesetup.h"
 #include "ui_dbdebugdatabasesetup.h"
 
+#include <QCheckBox>
+
 using namespace BlackCore::Data;
 using namespace BlackMisc;