Required DynamoDB table

[carlovsk]

On the current flow, a DynamoDB table is required to store the OAuth data from slack (correct me if I'm wrong). However, since the library is using the aws-sdk package, the table needs to be created manually. My proposal is to change to dynamoose, because it creates the table automatically.

I can help with that, but I also need some help with the table and what it does specifically.