Snakemake storage plugin: zenodo

A Snakemake storage plugin for reading from and writing to zenodo.org. The plugin takes queries of the form zenodo://record/121246/path/to/file.txt for downloading files (here from record 121246), and zenodo://deposition/121246/path/to/file.txt for uploading files to an existing deposition (i.e. an unpublished and therefore still writable record).