added _license/VegBank/

added LICENSE.TXT and related files (in _license/). the open-source portions of the svn repository are licensed as described in _license/. note that some portions of the svn repository are NOT open-source. these are copyright their respective owners.

schemas/vegbien.ERD.mwb: synced to schemas/vegbien.my.sql, which adds the validation schema

schemas/util.sql: added diff_views()

schemas/util.sql: added diff_cols(), for use with the aggregating validations

bugfix: schemas/Makefile: public/uninstall: need to uninstall the validation schema in addition to the public schema (deleting the public schema would only cascade to the contents of the validation schema)

schemas/vegbien.sql: added validation schema, which contains queries used in the aggregating validations. schemas/Makefile: include schemas that depend on `public` (eg. `validation`) so they are restored along with it.

bugfix: bin/pg_dump_vegbien: fixed arg-count check to allow passing command-line options to pg_dump via args

bugfix: inputs/SALVIAS/verify/plots.out.sql: fixed ' quoting syntax to use '' instead of \' to escape '

inputs/input.Makefile: verify/%.out: use a *.sql file in the verify/ directory itself to generate *.out, so that each datasource can have its own set of output queries. for datasources that should share the same set of queries, they can instead be symlinked to the same file.