[feat] Annotation composition (for @Consumes)

[piu130]

Could you add support for annotation composition? Example:

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@Consumes({"image/jpeg", "image/png"})
public @interface ConsumesImages {
}

@Path("/hello")
public class GreetingsResource {

    @GET
    @ConsumesImages
    @Produces(MediaType.TEXT_PLAIN)
    public String hello() {
        return "Hello RESTEasy";
    }
}

In this example OpenAPI falls back to Content-Type: application/json instead of a dropdown with values image/jpeg and image/png. Haven't tested this with other annotations (only @Consumes).

Btw. an issue template would be nice.

[MikeEdgar]

This could be implemented as generic support for composition.