Adding Euler Similarity and VersorRigid transforms

Allow user to construct these transform.

Change-Id: Icbd8e84f486f48ee2b58be06e437283a99b2eee4
Add basic testing of construction of new transforms.

Change-Id: I386a9304f1b56321dbc89a65bf2ddb835bca1aa1
Adding transform test of get parameters

Change-Id: Id68d1a5544f0fe1cc5b3dd33ac4ca85fac43117e
Merge topic 'SIMPLEITK-449_AddMoreMatrixTransforms' into next

9a24a63 Adding transform test of get parameters
3d2e507 Add basic testing of construction of new transforms.
2935de1 Adding Euler Similarity and VersorRigid transforms