ref #5448 Reduce multiple ex authors to only two
#5448 Support corner cases
#5448 Import non-CDM ranks
#5448 Remove non-exisiting hybrid category
#5448 Import rank "SAM"
#5488 Improve import of family taxa
#5448 Import annotation infos
#5448 Add taxa to their respective families
Import common name #5448
Add SEQNUM #5448
Import hybrid formulas #5448
Import concept relations E, W, K, AW, AO, R, O, S #5448
Add 8 more classifications #5448
improve taxon name check #5448
Handle hybrid names (only binomial at the moment)
Fix taxon node creation for nodes with no parents
Set sec references for classifications
Import taxa separately into checklist classification and GesamtListe classification
Import TAX_ZUSATZ
Refactor string constants
Add utils log method
Refactor duplicate code