(s3-deployment): Support tags to apply to objects in BucketDeployment

Presently, the [BucketDeployment construct supports the option to apply `metadata` to objects it deploys](https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-s3-deployment.BucketDeployment.html#metadata), would it be possible to have the option to set tags to apply also.

### Use Case

With the application of a [permissions boundary](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_boundaries.html) to the stack, the deployment cannot occur due to a lack of tags on the objects.

### Proposed Solution

Allow a map of tags to be supplied that are propagated onto objects deployed via the construct.

### Other

* [ ] :wave: I may be able to implement this feature request
* [ ] :warning: This feature might incur a breaking change

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This is a :rocket: Feature Request

Start by locating the TypeScript implementation and tests for the BucketDeployment construct, then inspect how the existing metadata option reaches deployed objects. The work is done when a supplied map of tags is propagated to those objects and the relevant behavior is covered by tests.

Written by the indexing model from the issue text.