inputs/.TNRS/schema.sql: added VegCore-style id column as the primary key, instead of using time_submitted directly. this enables always using the same name for the pkey. the pkey is now autopopulated from time_submitted in a trigger, using helper column id_by_time. the user is now also able to specify their own globally-unique ID that is not based on the time_submitted.
inputs/.TNRS/schema.sql: added VegCore-style id column as the primary key, instead of using time_submitted directly. this enables always using the same name for the pkey. the pkey is now autopopulated from time_submitted in a trigger, using helper column id_by_time. the user is now also able to specify their own globally-unique ID that is not based on the time_submitted.