[DocDB] Use bloom filter when user specified multiple keys

[spolitov]

Jira Link: DB-18245

Description

After commit 9d2e474/D41176, bloom filters can be modified dynamically during scan operations.
There are scenarios where user query multiple keys, for instance, using an IN clause in a WHERE condition.

We could provide support for such scenario to get advantage from bloom filters.

Issue Type

kind/enhancement

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