240-CborKnownTagGenerator

[mofosyne]

Attempted to see how adapting it to tinycbor goes https://github.com/intel/tinycbor/issues/240

I thought about matching style and the feature flag, however on further thoughts, I'm not convinced that feature flag macro is a good idea... but added it in as a tiny cbor specific flag. Also I rather screaming snake case to make it clear it's a special value.

Anyway this script is similar to https://github.com/mofosyne/iana-headers but tiny_cbor_style_override is set to true and iana_cbor_c_header_file_path and iana_cache_dir_path was adjusted.

To run this generator use ./tools/iana/iana-cbor-c-header.py from root folder