Wait for POC of Elastic Search. Inventory Search does not work as expected for diacritics and vernacular titles (aka alternate graphical representations)

Overview: Searching for title in keyword does not work when vernacular title appears in the paired 880 (245) field.

Steps to Reproduce:

1. Log into some FOLIO Snapshot as admin
2. Ensure that Settings/Inventory/Z39.50 Target Profiles – OCLC WorldCat – Authentication is set to 100473910/PAOLF
3. Open Inventory
4. Use "Actions/Import" five times using these OCLC numbers: 85202630, 43564886, 1091030365 1153193551, 1089848331
5. Search for a title in Russian, Chinese, Japanese, or Hebrew using the actual title in it's script (see example record's 880 $6 245 in Title (all).  Record is displayed in results list
6. Searching the transliterated title (in 245 $a) without ligature and other diacritics brings back no results in some cases.  When I let the system replace ligature with none, by backspacing between the characters, results were as expected. However, when I removed other diacritics by hand, because the system has no replacement character, no results displayed
   1. These data are not normalized for indexing, which is an industry standard.  There are results in neither Keyword nor Titles (all)
   2. Staff will not usually include diacritics when searching due to keyboard limitations.

Expected Results: Searching by title without including diacritics should result in finding the record. 
Actual Results: Searching a Latin-based alphabet where a title includes diacritics, such as Portuguese, omitting said diacritics showed that these are normalized in the index (as expected by industry standard)
Additional Information:
These searches seem to work as expected when testing using the Inventory ES app. 

As of 3/25/2021, these examples were in Snapshot Inventory: HRID in00000000082, HRID in00000000083, HRID in00000000085, HRID in00000000088, HRID in00000000090 because I successfully used the single record import function.  Here are are the associated OCLC system numbers used in these tests:

Interested parties: Everyone