Filter on a specific taxonomical annotation

• Also remove bioapi service from this app since it is now available as its own service

TO DO

• Compute representated taxonomy
• Use this list to display available filter for a given taxonomy level
• Update filter interface on frontend
• Create filtering on backend
• Use new filtering on frontend

The filter takes into account not only direct annotation but also all those at a higher level. It means that if a gene is annotated at the species level, it is also retrieved if we filter for its genus, order...

Closes #92