Add Another Test for Aws::IoTDataPlane
Add Another Test for Aws::IoTDataPlane

Adds a functional test for non-us-east-1 regions, regarding extraction
of the SigV4 signing region.

takeyuweb/aws-sdk-ruby,hamadata/aws-sdk-ruby,hamadata/aws-sdk-ruby,llooker/aws-sdk-ruby,cjyclaire/aws-sdk-ruby,aws/aws-sdk-ruby,hamadata/aws-sdk-ruby,aws/aws-sdk-ruby,takeyuweb/aws-sdk-ruby,llooker/aws-sdk-ruby,takeyuweb/aws-sdk-ruby,cjyclaire/aws-sdk-ruby,cjyclaire/aws-sdk-ruby,llooker/aws-sdk-ruby,aws/aws-sdk-ruby