Directory Structure [step 1]: moving files

working on #672

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deps/g3dlite/source/constants.cpp

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+/**
+  @file constants.cpp
+
+  @maintainer Morgan McGuire, http://graphics.cs.williams.edu
+  @created 2009-05-20
+  @edited  2010-01-29
+*/
+#include "G3D/constants.h"
+#include "G3D/Any.h"
+#include "G3D/stringutils.h"
+
+namespace G3D {
+
+
+
+} // G3D