[go] Generate swagger yaml

[bvwells]

Description

It would be good if the go client generator generated the swagger yaml file in the same manner as the go server generator.

Swagger-codegen version

2.3.0-SNAPSHOT.

Swagger declaration file content or url

Use Petstore.

Command line used for generation

Run:

bin\go-petstore.sh

Steps to reproduce

N/A

Related issues/PRs

N/A

Suggest a fix/enhancement

Enhancement PR submitted in PR #7233.