Function greater_than_equal

include/chaiscript/dispatchkit/operators.hpp:114–117

      template<typename T>
        void greater_than_equal(Module& m)
        {
          m.add(chaiscript::fun([](const T &lhs, const T &rhs){return lhs>=rhs;}), ">=");
        }

      template<typename T>
        void less_than(Module& m)