lib/runscripts/table.run: load_data(): also clobber install log if remaking, because the table will be reinstalled

lib/runscripts/table.run: load_data(): automatically select noclobber mode depending on whether the install log already exists. this removes the need for a separate load_data_first_run() function.

bugfix: lib/runscripts/table.run: load_data(): ignore errors if table already exists

lib/runscripts/table.run: load_data(): use noclobber=1 to avoid overwriting the install log when re-running the install target idempotently. load_data_first_run() is now available to preserve the output in the log on the first run.

inputs/input.Makefile: Staging tables installation: $(logInstall): don't output to the install log if $noclobber flag is set, to prevent overwriting the log when re-running the install target idempotently

bugfix: lib/runscripts/mysql.table.run: import(): move previous versions of table.tsv out of the main dir before loading staging tables, to prevent them from being considered a TSV segment file and prepended to table.tsv

lib/sh/util.sh: added mv2dir(), mv_glob which wrap mv

lib/sh/util.sh: added mkdir alias which adds -p to prevent errors if the dir already exists

lib/sh/util.sh: added wildcard alias, similar to make's $(wildcard) function

bugfix: inputs/GBIF/raw_occurrence_record_plants/postprocess.sql: institution_code index: create it idempotently using create_if_not_exists() and an explicit index name, so that a duplicate index doesn't get added each time postprocess.sql is run