Implement DynamoDB ORM

[FinnIckler]

This PR introduces the Dynamoid ORM to interact with the Database. It uses the Database Structure laid out in https://docs.google.com/document/d/12gaypUo5KY6uv9XdmrbcrfQPeQ6ZrkdVLPz59BDyoFc (minus some payment related fields).

Notes:

• Added Lane as a custom datatype that is serialized in JSON
• Added a lane_init step that is run before create
• We still create the Development Table in seeds.rb so it is easier to maintain parity with terraform
• I changed delete to be a non destructive operation
• Changed Registration Processor to be instantiated so we can initialize Dynamoid
• Added a LaneFactory class that we can use to create lanes
• There is a bug in Dynamoid Version 3.9.0 that makes saving custom data Types not work correctly so I am pinning to version 3.80

[FinnIckler]

@thewca-bot deploy staging

[FinnIckler]

After some messaging of the infrastructure iam policies this now works on staging