I'm submitting a...

[ ] Regression 
[ ] Bug report
[x] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Currently, there's no way of configuring exception responses globaly.

Expected behavior

It would be great to be able to define response documentation globally. Maybe in the same way auth is added:

const app = await NestFactory.create(AppModule)

const document = SwaggerModule.createDocument(
  app,
  new DocumentBuilder()
    .setTitle('Custom API')
    .addBearerAuth()
    .addResponse({
      status: 500,
      description: 'Internal server error'
    }) // Same type as @ApiResponse decorator: ApiResponseOptions
    .build()
)
SwaggerModule.setup('docs', app, document)

await app.listen(3000)

Minimal reproduction of the problem with instructions

N/A

What is the motivation / use case for changing the behavior?

Having the ability to define exception responses globally would remove a good amount of redundant code that now needs to be defined on every controller.

Environment

Nest version: 7.4.2
 
For Tooling issues:
- Node version: 14.4.0
- Platform: Linux

Others:
- @nestjs/swagger: 4.5.12