Add CiTrace recording support.

This is exposed in the GUI as a new "CiTrace Recording" widget.

Playback is implemented by a standalone 3DS homebrew application (which only runs reliably within Citra currently; on an actual 3DS it will often crash still).

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -22,6 +22,8 @@
 #include "video_core/renderer_opengl/gl_shader_util.h"
 #include "video_core/renderer_opengl/gl_shaders.h"
 
+#include "video_core/debug_utils/debug_utils.h"
+
 /**
  * Vertex structure that the drawn screen rectangles are composed of.
  */
@@ -129,6 +131,10 @@ void RendererOpenGL::SwapBuffers() {
             hw_rasterizer->Reset();
         }
     }
+
+    if (Pica::g_debug_context && Pica::g_debug_context->recorder) {
+        Pica::g_debug_context->recorder->FrameFinished();
+    }
 }
 
 /**