lib/sh/util.sh: dp(): renamed to ps() to corresponding with pv/pf

lib/sh/make.sh: echo_target: use `log-- echo_func`, which now puts the target name first but also provides much-needed indentation

lib/sh/util.sh: echo_func(): put file/line # after function call instead of before so the function name is listed first

lib/sh/util.sh: echo_func(): usage: removed no longer used/implemented minor=1 switch. use log++ instead.

lib/runscripts/datasrc_dir.run: import(): use new schema/make, schema/rm

lib/runscripts/table.run: load_data(): use the much simpler `schema/make` run target, rather than outsourcing to the legacy Makefile via the convoluted datasrc_make_install()/table_make_install()

lib/runscripts/datasrc_dir.run: added schema/rm(), schema/make()

lib/sh/util.sh: ignore_err_msg(): usage: added $ignore_e param from stderr_matches()

lib/runscripts/table.run: psql: always include ; at end of statement

fix: lib/sh/db.sh: pg_cmd(): hide PGPASSWORD at the normal verbosity so that the value of it doesn't appear in any log files