bugfix: schemas/vegbien.sql: scrubbed_morphospecies_binomial: only populate this from the component ranks; do not put a full taxon name in here if it would otherwise be NULL

inputs/.TNRS/schema.sql: tnrs: removed no longer used Accepted_scientific_name. use scrubbed_unique_taxon_name instead.

inputs/.TNRS/schema.sql: MatchedTaxon, etc.: removed no longer used acceptedScientificName (from tnrs.Accepted_scientific_name). use scrubbed_unique_taxon_name instead.

inputs/.TNRS/schema.sql: removed no longer used AcceptedTaxon. use taxon_scrub.scrubbed_unique_taxon_name.* instead.

bugfix: schemas/vegbien.sql: tnrs_input_name: MatchedTaxon self-join: must use a NOT NULL column for a proper anti-join. this unfortunately requires the more verbose LEFT JOIN ON syntax (which allows using the pkey as the NOT NULL column) instead of NATURAL LEFT JOIN (which requires using another column, which are all nullable)

schemas/vegbien.sql: tnrs_input_name: use plain UNION, which automatically removes duplicates, rather than UNION ALL with a manual EXCEPT-removal of rows in the first SELECT

schemas/vegbien.sql: tnrs_input_name: updated to use taxon_scrub.scrubbed_unique_taxon_name.*, to avoid further dependencies on AcceptedTaxon

inputs/.TNRS/schema.sql: removed no longer used ScrubbedTaxon. use taxon_scrub instead.

schemas/vegbien.sql: taxon_trait_view: updated to use new taxon_scrub

schemas/vegbien.sql: analytical_stem_view: updated to use new taxon_scrub. this avoids the need to manually COALESCE every accepted* and matched* field, and makes the formulas much clearer