ACAS-710: Code table label text search and short name match query parameters

[brianbolt]

Description

• Add code table/ddict value label text search which searches for label text and orders by a "best match"
• Add code table/ddict value short name match which finds the ddict value based on short name in the same route
• Added maxHits argument to limit results where the default is to not update.
• Added indexes on label_text to facilitate faster search including tsvector and a lower varcharops which was new to me and handles both lower case seraches and wildcard like search cases:

The operator classes text_pattern_ops, varchar_pattern_ops, and bpchar_pattern_ops support B-tree indexes on the types text, varchar, and char respectively. The difference from the default operator classes is that the values are compared strictly character by character rather than according to the locale-specific collation rules. This makes these operator classes suitable for use by queries involving pattern matching expressions (LIKE or POSIX regular expressions) when the database does not use the standard “C” locale. As an example, you might index a varchar column like this:

CREATE INDEX test_index ON test_table (col varchar_pattern_ops);

Related Issue

ACAS-710

How Has This Been Tested?

• Ran acasclient tests to verify compatability.
• Uploaded thousands of data column/ column tree ls_type / ls_kind values to ddict value and verified the code table fields behaved properly in Experiment editor and protocol editor as well as those in each of the endpoint manage fields.
• See related ACAS-710: Code value picklists type ahead search acas#1148 for demo video

[bffrost]

LGTM. It's interesting to learn about the postgres searching functions. This looks like a reasonable API to allow both exact shortName lookups and text searching of label texts.