SAM template changes, parameter store in DAG, simplified setup

[mrichman]

• Creating Rekognition collection via custom resource
• Lambda function and DynamoDB table names in DAG via Parameter Store
• Simplified pre-deploy using setup.sh
• Dynamic MWAA environment name to facilitate deploying multiple stacks in the same account

[umaragu]

Running setup.sh in us-west-2 cause the following issue An error occurred (IllegalLocationConstraintException) when calling the CreateBucket operation: The unspecified location constraint is incompatible for the region specific endpoint this request was sent to. use aws s3api create-bucket --bucket $S3_BUCKET --create-bucket-configuration LocationConstraint=region

Creates a collection ID by name "image_processing". If a different name is given in the parameter, the template only use it for providing IAM permissions thus breaking the access to collection.

[mrichman]

Fixed template.yaml to use RekognitionCollectionId param to dynamically set collection_id in Lambda function.