clone method

@override MatrixD clone()

Implementation

@override
MatrixD clone() => .new(
  originalPointer: originalPointer,
  m0: m0, m1: m1, m2: m2, m3: m3,
  m4: m4, m5: m5, m6: m6, m7: m7,
  m8: m8, m9: m9, m10: m10, m11: m11,
  m12: m12, m13: m13, m14: m14, m15: m15,
);