[Go] Generate XML struct annotations

Created by: langston-barrett

Description

When generating Go code, one gets types tagged with JSON:

type Foo struct {
	Str string `json:"Str,omitempty"`
}

This is awesome for JSON APIs. However, OpenAPI also allows for application/xml content-types! I am writing an XML API and currently have to manually go in and tag these types.

openapi-generator version

The Docker CLI generator.

Command line used for generation

sudo docker run --rm -v ${PWD}:/local openapitools/openapi-generator-cli generate \
       -i /local/swagger.yml \
       -g go \
       -o /local/generated/client

Steps to reproduce

Write any swagger.yml and generate Go code

Related issues/PRs

Suggest a fix/enhancement

Automatically annotate all structs with both XML and JSON names, to start. The tags are space separated.