Add free-text search extension #758

Job	Run time
Python 3.8 testing with elasticsearch7	1m 47s
Python 3.8 testing with elasticsearch8	1m 49s
Python 3.8 testing with opensearch	1m 43s
Python 3.9 testing with elasticsearch7	1m 42s
Python 3.9 testing with elasticsearch8	1m 49s
Python 3.9 testing with opensearch	1m 44s
Python 3.10 testing with elasticsearch7	1m 44s
Python 3.10 testing with elasticsearch8	1m 45s
Python 3.10 testing with opensearch	1m 47s
Python 3.11 testing with elasticsearch7	2m 4s
Python 3.11 testing with elasticsearch8	2m 5s
Python 3.11 testing with opensearch	2m 8s
Python 3.12 testing with elasticsearch7	1m 42s
Python 3.12 testing with elasticsearch8	1m 46s
Python 3.12 testing with opensearch	1m 46s
	27m 21s

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