Holdings - support keyword search within electronic access fields

Purpose/Overview:
The purpose of this story is to allow the user a keyword search across electronic access fields when the search is limited to electronic access only.

Requirements/Scope:
1. Case insensitive
2. Word match in either of the following Inventory holdings fields:

• electronicAccess[].uri
• electronicAccess[].linkText
• electronicAccess[].materialSpecified
• electronicAccess[].publicNote

3. Supports search in other than English languages (including CKJ languages, Arabic, Hebrew)

Acceptance criteria:

• Query returns accurate hit count
• User can search by any word that is a part of the field's value
• Results are ranked based on term frequency, inverse document frequency and field length
• Stemming according with configured on the tenant language tokenizers
• If the user enters asterisks then the keyword search is triggered

Outside the scope

• UI work
• AND, OR, NOT and NESTING

Additional Information:
Inventory Instance schema: https://github.com/folio-org/mod-inventory-storage/blob/master/ramls/holdingsrecord.json