Add 3D metadata block to Demo Dataverse for testing

[jggautier]

@sbarbosadataverse and I met today with folks from Harvard Library, Boston College and Open Forest Data to discuss plans for testing new metadata fields for describing 3D data. We'd like to add the metadata block to Demo Dataverse so that the fields can be reviewed by folks who publish 3D data.

Folks at Harvard Library are editing the metadata block based on the review during the meeting. After it's edited, I'll add the TSV file in this GitHub issue.

@sbarbosadataverse and I plan to meet next week to plan for testing the new fields.

Related issue:

• Metadata: Add 3D metadata block to HDV once it's tested in demo and receives community feedback #253

[cmbz]

@jggautier When the metadata block is available, please ping me in Slack and I will expedite this issue.