fix: search with multiple values

[larslutz96]

Fixes search for search terms with multiple values like: '/admin/Books?$search=foo bar'

[BobdenOs]

Please prevent duplicate or parallel work on the same task: #736

[johannes-vogel]

Please prevent duplicate or parallel work on the same task: #736

I think that's a bit different. #736 was for sqlite and likely solved with #754.
This PR here likely provides compat for okra + cap-js/hana.

[patricebender]

should we have a test for this?

[BobdenOs]

@patricebender We had to disable the $search tests, because HXE doesn't support SCORE.

[danjoa]

Didn't we say we simply pass search terms down to HANA?
If so, why do we need to process them?
Why are they xpr at all?

[llanghammer-sap]

Hey all,

Is there any update on this topic? On Fiori Element List Reports the Search is usually a standard feature and as of now any multi value search will result in an unexpected error.