Move BoundingBox out of RenderBase

They were essentially just pass-though methods

Source/Core/VideoCommon/BoundingBox.h

@@ -49,6 +49,18 @@ private:
   std::array<BBoxType, NUM_BBOX_VALUES> m_values = {};
   std::array<bool, NUM_BBOX_VALUES> m_dirty = {};
   bool m_is_valid = true;
+
+  // Nintendo's SDK seems to write "default" bounding box values before every draw (1023 0 1023 0
+  // are the only values encountered so far, which happen to be the extents allowed by the BP
+  // registers) to reset the registers for comparison in the pixel engine, and presumably to detect
+  // whether GX has updated the registers with real values.
+  //
+  // We can store these values when Bounding Box emulation is disabled and return them on read,
+  // which the game will interpret as "no pixels have been drawn"
+  //
+  // This produces much better results than just returning garbage, which can cause games like
+  // Ultimate Spider-Man to crash
+  std::array<u16, 4> m_bounding_box_fallback = {};
 };
 
 extern std::unique_ptr<BoundingBox> g_bounding_box;