Fix/update forms for main and settings window

- Had the wrong names set for the up/down widgets for sources/scenes

- Updated the settings dialog and gave most of the widgets actual object
  names

- Added code for the settings window.  Settings window should now at
  least display.

obs/window-basic-main.cpp

@@ -20,7 +20,7 @@
 #include <QMessageBox>
 
 #include "obs-app.hpp"
-//#include "window-basic-settings.hpp"
+#include "window-basic-settings.hpp"
 #include "window-namedialog.hpp"
 #include "window-basic-main.hpp"
 #include "qt-wrappers.hpp"
@@ -521,4 +521,6 @@ void OBSBasic::on_actionSourceDown_triggered()
 
 void OBSBasic::on_settingsButton_clicked()
 {
+	OBSBasicSettings settings(this);
+	settings.exec();
 }