Test dataset: authority records for concerto

Add a handful of authority records to match a subset of the Concerto
bib records. When the --load-all or --load-concerto options are passed
to eg_db_config, these authority records will be loaded. Running
"authority_control_fields -s 1 -e 100" will then generate 19 links from
Concerto bibs to corresponding authority records.

Signed-off-by: Dan Scott <dscott@laurentian.ca>
Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>