provide links to historic data

[egonw]

We need some way to cache links to older ID mapping databases. This is a new feature.

[DeniseSl22]

104: https://zenodo.org/doi/10.5281/zenodo.6367090
105: https://zenodo.org/doi/10.5281/zenodo.6502114
106: https://zenodo.org/doi/10.5281/zenodo.7327670
107: https://zenodo.org/doi/10.5281/zenodo.7525680

[DeniseSl22]

Plants:
49: https://zenodo.org/doi/10.5281/zenodo.6502051

Metazoa:
49: https://zenodo.org/doi/10.5281/zenodo.6500400