Description

Summary:

The 3D Transformation utests were failing on Ubuntu Bionic with Eigen 3.3.4, in contrast to all other platforms tested with Eigen 3.4.
I added a non-zero epsilon precision value to Eigen's isApprox call for Rotation and Rotation+Scaling tests.
My guess is the two versions of Eigen treat zero epsilon precision values differently; hence the tests weren't failing with 3.4.0.
Fixes #534

Changes and type of changes (quick overview):

• Added a non-zero epsilon precision value to Eigen's isApprox in failing Transformation utest.

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