ENH: add an action to extract BUSCO genes from a MAG/genome

[misialq]

It would be great if we could extract the BUSCO orthologs for a given lineage from MAGs/genomes as those could later be used to e.g., construct a phylogeny.

Inputs/parameters:

• dereplicated MAGs FeatureData[MAG]
• BUSCO database
• lineage of choice

Outputs:

• extracted sequences FeatureData[Sequence] (is it a collection of artifacts, one artifact per ortholog?)