ENH: Fetch NCBI Taxonomy Data (input to build_custom_diamond_db action)

[Sann5]

Context

The build_custom_diamond_db action can optionally take a ReferenceDB[NCBITaxonomy] artifact, with which the resulting Diamond database contains taxonomy features. There is a need to create an action that produces this ReferenceDB[NCBITaxonomy] artifact by fetching the appropriate data from the internet.

Something like...

qiime moshpit fetch-ncbi-taxonomy-db ...

Important Considerations

There are two links from where the data comes from. One can find out the time and date of the last modification to the file on the server by calling wget -S --spider <somewhere_in_the_internet>. It might be important to include this data in the artifact since the version might influence the results.

Tasks

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1. ENH: Fetch EggnogSequenceTaxa for build-eggnog-diamond-db action #108
   enhancement +1
   
2. ENH: add a build-eggnog-diamond-db action #115
   1 of 1
   enhancement +1
   
3. ENH: Update NCBITaxonomyDirFmt to accomodate data-version file q2-types-genomics#72
   enhancement +1
   
4. ENH: action to build custom Diamond database #102
   enhancement +1