Build DynamoDB scripts

[briri]

We need to ensure that the DynamoDB can be reconstructed

• [x] Build out Cloud Formation and/or ruby scripts (using the aws-sdk) to build out the DynamoDB structure (see start of ruby scripts generated as part of an AWS DynamoDB training course: https://github.com/CDLUC3/dmp_aws)
• [ ] Build Rake task to extract existing DMPHub DMP records in the JSON format we want for 2.0
• [ ] Determine best place to host maintenance scripts for the DB (e.g. seeding the blank DB, etc.)
• [ ] Build out ruby scripts (using the aws-sdk) to seed the DynamoDB table with items

[briri]

Along with the :current_version flag, we should also add:

• :embargoed - to allow us to hide a DMP without having to delete it from the DB ... results in the display of a tombstoned DMP page/json)
• :private - to allow us to hide specific metadata in the future if necessary

[briri]

Closing in favor of https://github.com/CDLUC3/dmptool/issues/384