Install DyanamoDB Local

[loujaybee]

1. Copy an existing installation file https://github.com/openupthecloud/open-cloud-dev-box/blob/main/install-aws-cli.sh
   1. Use https://github.com/openupthecloud/open-cloud-dev-box/pull/7/files for inspiration if needed
2. Add installation steps for https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.DownloadingAndRunning.html
3. Ensure it's running by starting new workspace + running the java command java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb
4. Raise a pull request

[loujaybee]

Duplicate of: #11

[keenson]

I will have this ready by tomorrow.