…ransition to derive from it.

The MatrixTransition class uses a callback to handle any value => Matrix animation.

The alignment and filterQuality logic that was in ScaleTransition and RotationTransition is now factored in MatrixTransition.

The ScaleTransition.scale and RotationTransition.turns getters had to be kept because they're still referenced in https://github.com/flutter/packages/tree/main/packages/animations, and https://github.com/flutter/packages/flutter/test/. I plan to remove the references there, once this PR is generally available, and then remove the getters here.

A RotationTransition test was updated to use matrixMoreOrLessEquals because using Matrix4.rotationZ doesn't have the special cases Transform.Rotation had, and zeroes in matrix weren't exactly zeroes.

fixes #130946