Matt ayman frames

Redo of the merge of Frame, RigidFrame, FixedFrame, Station and Marker ModelComponents along with code to convert Marker to new format for serialization/deserialization and inclusion of FrameSet in model.
@sherm1 @msdemers @aseth1 or @chrisdembia Please review and let us know your feedback.
@sherm1 @chrisdembia yep.  Copy paste error.  Thanks for the find.  I favor Sherm's approach of providing @return even if redundant with description.