Geometry_Engine: IsRigidTransformation query returns false for reflection

[pawelbaran]

Description:

As in the title, reflection is considered a non-rigid transformation in BHoM - looking at the code, it seems to be a typo in line below, Math.Abs should be targeted at determinant, not 1-determinant.

BHoM_Engine/Geometry_Engine/Query/IsRigidTransformation.cs

Line 72 in fa7184b

return multiplied.IsEqual(identity, tolerance) && Math.Abs(1 - rotation.Determinant()) <= tolerance;