IERC2981 interface consists of a single royalty_info function, but there are 6 more external functions for reading state or managing royalties:

• default_royalty (read)
• token_royalty (read)
• set_default_royalty (write)
• delete_default_royalty (write)
• set_token_royalty (write)
• reset_token_royalty (write)

It would be helpful to provide a ready-made external implementation for the 2 read functions.
Also, we can implement a trait that contains the functions for managing royalties and provide 2 versions: based on Ownable and AccessControl components

This will make component integration way easier and will reduce the amount of boilerplate