Regenerated vegbien.ERD exports

schemas/vegbien.sql: taxonconcept_ancestor: Renamed taxonconcept_id to descendant_id to emphasize the direction of the relationship between the two taxonconcepts

schemas/vegbien.ERD.mwb: Added taxonconcept_ancestor to the diagram since it is now a core table for storing taxonomic information

mappings/VegCore-VegBIEN.csv: Mapped accordingTo to taxonconcept.creator_id, and have it take the place of identifiedBy when both are present

mappings/VegCore-VegBIEN.csv: Remapped people's names split apart into name components in party to new party.fullname, which does not require splitting or make assumptions about the number of people who may be listed in a particular name field and which components of their name(s) are present

schemas/vegbien.sql: party: Added fullname

mappings/VegCore.csv: Added accordingTo

inputs/.TNRS/tnrs/map.csv: Mapped Name_matched_url to scientificNameID, since the URL uniquely identifies the matched taxonconcept

schemas/vegbien.sql: taxonconcept: Renamed taxonname to taxonepithet for clarity and to be consistent with TCS's use of "epithet" to denote what the taxonname was intended to be (http://www.tdwg.org/standards/117/download/#/UserGuidev_1.3.pdf)

schemas/vegbien.sql: taxonconcept.creator_id: Documented that this is the concept reference for a taxon concept with an "according to", or the identifier's name for a nominal concept, and is equivalent to "Name sec. x"