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.Graphics.GAL/IRenderer.cs

@@ -1,3 +1,4 @@
+using Ryujinx.Common.Configuration;
 using Ryujinx.Graphics.Shader;
 using System;
 
@@ -32,6 +33,6 @@ namespace Ryujinx.Graphics.GAL
 
         void ResetCounter(CounterType type);
 
-        void Initialize();
+        void Initialize(GraphicsDebugLevel logLevel);
     }
 }