Feature request: Add `--change-set-name` to `sam deploy` command

### Describe your idea/feature/enhancement

Provide a clear description. Ex. I wish SAM CLI would [...]

See https://github.com/aws/aws-cli/issues/5435 for reference. We are reviewing requests involving the AWS CLI CloudFormation package/deploy customization for consistency with the SAM CLI. Is adding a parameter to customize the change set name via the `sam deploy` command something that the SAM CLI team would consider?

### Proposal

Add details of how to add this to the product.

Things to consider:
1. Will this require any updates to the [SAM Spec](https://github.com/awslabs/serverless-application-model)

### Additional Details