message: Update external wrap documentation
diff: @@ -293,6 +293,11 @@ public:
  The parameter @a own determines whether both @a h_ptr and @a d_ptr will
  be deleted when the method Delete() is called.
  + @note Ownership can also be controled by using the folowing methods:
  + - ClearOwnerFlags,
  + - SetHostPtrOwner,
  + - SetDevicePtrOwner.
  +
  @note The current memory is NOT deleted by this method. */
  inline void Wrap(T *h_ptr, T *d_ptr, int size, MemoryType h_mt, bool own);
  