Implement presence or absence searches

Purpose/Overview:

To allow the user to search the data in MARC fields, subfields, and control fields.

Requirements/Scope:

1. Allows the user to search for the presence or absence of a given field or subfield.

Approach:

Search is formatted like
{
"fieldsSearchExpression": "899.value is 'present'"
}
for a tag or
 
{
"fieldsSearchExpression": "899.a is 'present'"
}
for a subfield.

'present' can be changed to 'absent'.

Acceptance criteria:

• Evaluate if results are returned in under a minute against a collection of 10 million SRS records. If not create other tickets as needed.
• Results should be paginated
• Offset and limit parameters will determine pagination
• Results should contain a JSON response with keys: records (array of associated instance UUIDS), recordCount (integer)
• A search with no results should have an empty records array and count of 0
• When passing parameter suppressed=true then records that are suppressed from discovery will be included in the results