AWS::EC2::VPCEndpointService Add Endpoint Service Name output

AWS::EC2::VPCEndpointService provides only a single output value: the ID of the VPC endpoint service configuration. To create the opposite end of the connection (a VPC Endpoint) and to describe the Endpoint Service you need to know the Endpoint Service Name.

Add the Endpoint Service Name to the outputs.

Example VPC Endpoint Service ID output: vpce-svc-0123456789abcdef0
Example Endpoint Service Name: com.amazonaws.vpce.us-east-1.vpce-svc-0123456789abcdef0

The endpoint service name may be calculated. However, any changes to the format will break existing automation. Format differences are often required in GovCloud or China. Outputting the actual Endpoint Service Name will enable automation to be more reliable.