Support for using custom param decorators

[Toxicable]

Is there an existing issue that is already proposing this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe it

While trying to integrate this package, we were unable to get @nestjs/swagger to pick up out custom route param decorators.

Describe the solution you'd like

Support for custom route param decorators could be added.
The problem is that this https://github.com/nestjs/swagger/blob/master/lib/services/parameter-metadata-accessor.ts#L69 parses custom decorators into NaN since keyPair[0] is a uuid from https://github.com/nestjs/nest/blob/master/packages/common/decorators/http/create-route-param-metadata.decorator.ts#L26 returns NaN , if we could detect this by possibly adding a new optional argument of type RouteParamtypes then the mapping would work.

Teachability, documentation, adoption, migration strategy

No response

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

Easier interoperability between features from the different nestjs packages

[kamilmysliwiec]

#32