Added option to swap axes orientation on rider constraint

[mdilena]

Checklist

• I have read the CONTRIBUTING.md document
• I have added documentation regarding my changes where necessary

Types of Changes

• Bugfix (change that fixes an issue)
• New Feature (change that adds functionality)
• Documentation Update (if none of the other choices apply)

Proposed Changes

Added the ability to swap axes orientations on the rider constraint node, similarly to what Maya's native motion path node can do. The AE Template has also been updated to organize the new attributes.

I also took the chance to add a native outputMatrix port in the output array, which I think was supposed to be there from the beginning as there was an aOutMat MObject declared that was never implemented.
Since I was dealing with MTransformationMatrix I changed the reorder rotations logic to use that class instead of MEulerRotations, so the decompose is not necessary anymore.

Here's a video showing the changes: Twist Spline - Rider Constraint Axes Orientation Feature

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[mdilena]

Just a heads up that I may have to implement this for both type of twist tangent nodes as well, otherwise the twist matrix won't be correct. I might scrap this merge request and move the recomputeRotationMatrix function into twistSpline_maya.h so it's available across different modules.