inputs/.TNRS/schema.sql: `taxon_scrub.scrubbed_unique_taxon_name.*`: added to-modify instructions

inputs/.TNRS/schema.sql: *_modify(): merged these into the "to modify" instructions in the corresponding views, because there is no need to create a separate *_modify() function for every view now that their definitions are all the same

validation/aggregating/plots/bien3_validations_salvias_vegbien.sql: updated to DB

schemas/public_.sql: analytical_stem_view and related views: updated COMMENTs from data dictionary spreadsheet, using the steps at wiki.vegpath.org/VegBIEN_schema_refactoring#copy-data-dictionary-definitions-to-database

schemas/public_.sql: ran analytical_stem_view_modify(), which transfers the column COMMENTs from analytical_stem_view to analytical_stem

bugfix: schemas/util.sql: view_def_to_orig(): need to handle cases when list of cols from the same table is not an expanded * expression

schemas/util.sql: added view_is_subset(view_def text)

schemas/util.sql: added view_is_automatically_updatable(view_def text)

bugfix: schemas/util.sql: show_create_view(): use the overridden version of pg_get_viewdef(), which supports expanded * expressions. this was possibly being used already whenever util happened to be in the search_path.

bugfix: schemas/public_.sql: analytical_stem_view_modify(): updated to new analytical_stem_view column names