Refs #6849. Adding id getter for coordinate transforms.
Refs #6849. Changing affine matrix saving.
Refs #6849. Add type of affine transform as attribute.
Refs #6849. Change name for W matrix entry.
Refs #6849. Changing W matrix function and affine transform names.
Refs #6849. Adding loading of W matrix and affine transforms.
Refs #6849. Fixing type issue.
Refs #6849. Handling affine matricies better.
Refs #6849. Fixing warning.
Refs #6849. Fix for failing unit tests.