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.
Could we rename this method? `expressLocationInAnotherFrame` or `expressPositionInAnotherFrame`. I think @sherm1  uses location in Simbody. To me, a point is a physical thing that has attributes such as a location.