F2F-4 language

F2F-4 final version

• group thinks that this is a workable version that everyone can use to create odmObjects and odmThings

R1-C1: Merge pull request #75 from one-data-model/sdf-md-update-for-optionality

F2F-4
initial candidate version of release 1.

still editorial updates to make to make the candidate a final version