autogenerated semantic tag header file

[mofosyne]

Unsure where this would fit in the website, but created a project to autogenerate a C header file with the latest semantic tags from IANA in https://github.com/mofosyne/iana-headers/blob/main/cbor/c/cbor-constants.h which would use a python script shown in https://github.com/mofosyne/iana-headers/blob/main/cbor/iana-cbor-c-header.py to generate it.

This could potentially be integrated into other cbor projects to avoid fragmentation of semantic tag references in various source codes.