Enable transitive reconciliaton

[cthoyt]

Closes #75 as a follow-up to #74

This PR enables transitive reconciliation of CURIE prefix remapping. This solves the problem when you have a CURIE prefix remapping like {"geo": "ncbi.geo", "geogeo": "geo"}. It's smart enough to know that you want to first fix the name of geo then remap geogeo onto it.

This does not allow you to simply do {"geo": "ncbi.geo"} as this would create a clash, so nothing would happen when using this remapping.

Example usage:

from curies import Record, Converter, remap_curie_prefixes

records = [
    Record(prefix="geo", uri_prefix="https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc="),
    Record(prefix="geogeo", uri_prefix="http://purl.obolibrary.org/obo/GEO_"),
]
converter = Converter(records)
remapping = {"geo": "ncbi.geo", "geogeo": "geo"}

new_converter = remap_curie_prefixes(converter, remapping)
>>> new_converter.records
[
    Record(prefix='geo', uri_prefix='http://purl.obolibrary.org/obo/GEO_', prefix_synonyms=['geogeo'], uri_prefix_synonyms=[]), 
    Record(prefix='ncbi.geo', uri_prefix='https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=', prefix_synonyms=[], uri_prefix_synonyms=[])
]