Docs : Add support to filters by module

Hello, is there any way to support custom filter / authorize attribute by set of endpoints ? i.e. allowing an API key authentication for all endpoints in the same folder ?

Thank you.

No files or tests are named. Start by tracing how custom filters, authorize attributes, API key authentication, and endpoint folders are represented in the project. Done would mean a documented, agreed-upon way to apply the requested authorization behavior to all endpoints in a folder, with coverage for the resulting behavior.

Written by the indexing model from the issue text.