[FEATURE] Move Opensearch Related functions out of the CORE layer.

[vmmusings]

Is your feature request related to a problem?
Currently Opensearch match functions are written in core layer and exposed to all kinds of catalogs. The ask from this issue to move these opensearch specific functions to opensearch connector and expose it via StorageEngine Interface.

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[dai-chen]

Duplicate as #811. Closing to track in one place. Thanks!