Manual Sweep of S3 for protocol test work

[peterrsongg]

Description

Since s3 is handcoded, the protocol test changes we made didn't propagate to S3. S3 was mostly in line with the protocol tests. There were some very minor changes such as adding missing xml namespaces and prefixes.

I also removed the IXmlUnmarshaller<JsonUnmarshallerContext> implementation for the structure unmarshallers since the unmarshallers don't need to implement both interfaces anymore.

Motivation and Context

Updates S3 to be inline with other services.

Testing

DRY_RUN-0cbfaf75-64e3-4948-9d69-ec49e21f9d54

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have read the README document
• I have added tests to cover my changes
• All new and existing tests passed

License

• I confirm that this pull request can be released under the Apache 2 license