message: Serialization function for 3x3 matrices
diff: @@ -53,6 +53,15 @@ inline void serialize(A& a, MATH_NAMESPACE::vector<4, T>& v, unsigned /* version
  }
  +template <typename A, typename T>
  +inline void serialize(A& a, MATH_NAMESPACE::matrix<3, 3, T>& m, unsigned /* version */ )
  +{
  + a & m.col0;
  + a & m.col1;
  + a & m.col2;
  +}
  +
  +
  template <typename A, typename T>
  inline void serialize(A& a, MATH_NAMESPACE::matrix<4, 4, T>& m, unsigned /* version */ )
  {
  