Add conditional wildcard queries for object searches

[tylerbarna]

Description

If a user submits a query that consists of what could be an object identifier (eg 230919a), the search function will automatically add wildcard characters to the query and submit a wildcard search. This is done by using a regex. If the regex is true, it strips out the alphabetical characters on either side of the string and then inititates a wildcard search. This wildcard search does not occur if the query does not match the regex.

Related Issue(s)

Resolves #2281

Testing

Test added functionality:

• Navigate to circulars archive
• Initiate a search for some object identifier, like 230919a
• Results should now show any circulars where the object identifier is in the subject
• Compare this to current search, where same query will not return results

Test standard query:

• Navigate to circulars archive
• Initiate a search that the regex should evaluate as falsey
• Compare the results to the current search, it should be the same

[tylerbarna]

Made redundant by planned implementation of lucene style queries in #2288