Facilitate OpenGL debug logging via GUI (#1373)

* Allow printing GL Debug logs with GUI options

Improve GL Debugger

Make the new option persistent

Address gdkchan's comments
- Rename enum to GraphicsDebugLevel
- Move Debugger Init to Renderer Init
- Fix formatting

* nit: newlines

Ryujinx/Ui/MainWindow.cs

@@ -501,7 +501,7 @@ namespace Ryujinx.Ui
                 }
             ).ToArray());
 
-            _glWidget = new GlRenderer(_emulationContext);
+            _glWidget = new GlRenderer(_emulationContext, ConfigurationState.Instance.Logger.GraphicsDebugLevel);
 
             Application.Invoke(delegate
             {