Provide a way to avoid resolving the authentication for some URL pattern

[loicmathieu]

Feature description

We use basic JWT authentication with cookie enabled.
We noticed that, for static assets, the authentication is still loaded which due to our security layer do a query on database.

We do configure

micronaut:
  security:
    intercept-url-map:
      - pattern: "/ui/**"
        access: "isAnonymous()"

But even with that, when the cookie is added to the asset request, the cookie authentication is performed.
This is because the Authentication object is resolved even for anonymous path so you can inject an optional Authentication object.

We would need a way to bypass authentication resolving entirely for some URL pattern.

[loicmathieu]

Ping @sdelamo