MoveAlongPathEffect parametrize _lastAngle

[Rhesos]

What could be improved

MoveAlongPathEffect sets the attribute _lastAngle to 0. It would be nice to be able to change it but currently there seems to be no way.

Why should this be improved

I have a use case of MoveAlongPathEffect making use of quadraticBezierTo Path, and using the flag oriented: true. The effect must be applied on a component that has an already tweaked angle value. Therefore _lastAngle value to 0 does not match and leads to incorrect component orientation during the effect.

Any risks?

I do not see a risk, as this improvment should be backward compatible.