What is the areas you would like to add the new feature to?

Go-COSE Library

Is your feature request related to a problem?

I want to be able to use the typ header, as described in https://datatracker.ietf.org/doc/draft-ietf-cose-typ-header-parameter/

What solution do you propose?

Add the code point for the typ parameter to the header parameters exposed by this library.

What alternatives have you considered?

setting the parameter directly, without using the header parameters exposed by this library.

Any additional context?

This should be done after https://datatracker.ietf.org/doc/draft-ietf-cose-typ-header-parameter/ has been assigned an RFC number.