Add DynamoDB storage provider support

[aslotte]

Is your feature request related to a problem? Please describe.
It would be cool to have AWS support for our storage provider

Describe the solution you'd like
Add support to use DynamoDB for our IMetaDataStore

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[aslotte]

I believe we can use the AWSSDK.DynamoDBv2 nuget package to do this.

It appears to make most sense to pass in an AWS access key and secret in the configuration step

[aslotte]

Please let me know if you work on this. This is probably not priority one right now as it would deviate from our usage of EF Core. Let's hold off on this one until we see a client need (should still be very feasible to implement)