Pull Schema Version

[shaselton-usds]

Using the Node wrapper, pull the version passed in (or the default) of the schema repo.

• Node would download the docker image (Still confused on this step - maybe in the node build step [npm install])
• Node would download the full github schema repo (npm install)
• Node command -v 1.0
• Node switches tagged version in repo.
• Node would execute validation command against the docker image and schema version