Auto-fit the WASD camera to the bounding box after switching

* We do the same for the arcball, there's no reason the flycam should default to
  the origin for vertex inputs

qrenderdoc/Windows/BufferViewer.cpp

@@ -3628,6 +3628,7 @@ void BufferViewer::on_controlType_currentIndexChanged(int index)
       m_Flycam->Reset(FloatVector(0.0f, 0.0f, 0.0f, 0.0f));
     else
       m_Flycam->Reset(FloatVector(0.0f, 0.0f, -10.0f, 0.0f));
+    on_autofitCamera_clicked();
   }
 
   INVOKE_MEMFN(RT_UpdateAndDisplay);