Added inputs/test_taxonomic_names/test_scrub

schemas/vegbien.sql: taxonconcept: Renamed canon_taxonconcept_id to canon_concept_id to shorten the name, which is used often

schemas/vegbien.sql: taxonconcept: Added taxonconcept_canon_concept_min_fit() trigger to remove the canon_concept_id link from insufficient matches. These occur when e.g. a name in another language is approximated to a latin name or when the input name is not a proper taxon but TNRS provides a best-guess match anyway.

inputs/.TNRS/tnrs/map.csv: Mapped Family_score to new matchedFamilyFit_fraction

mappings/VegCore-VegBIEN.csv: Use matchedFamilyFit_fraction as canon_concept_fit_fraction when greater than matchedTaxonFit_fraction, because if there is at least a matched family, there is a valid taxonconcept to attach to

xml_func.py: Simplifying functions: Added _min, _max as passthroughs

schemas/functions.sql: Added _max(), _min()

mappings/VegCore.csv: Added matchedFamilyFit_fraction

mappings/VegCore-VegBIEN.csv: Remapped matchedTaxonFit_fraction to the verbatim* taxonconcept, because this is actually for the verbatim* concept's fit to the matched concept, not the matched concept's fit to the accepted concept

inputs/.TNRS/tnrs/map.csv: Restored *-prefixed output terms for unmapped terms that had initially been mapped to OMIT but could reasonably match to something in the future. Continue mapping Name_number to OMIT because it isn't globally unique (it identifies the name only within one TNRS batch).