Fix to include a needed include for the accumulation volume stuffs

Engine/source/T3D/shapeBase.cpp

@@ -62,6 +62,7 @@
 #include "materials/materialFeatureTypes.h"
 #include "renderInstance/renderOcclusionMgr.h"
 #include "core/stream/fileStream.h"
+#include "accumulationVolume.h"
 
 IMPLEMENT_CO_DATABLOCK_V1(ShapeBaseData);