bloom search pattern acceleration support for regex extracted tokens

[elliVM]

Description
use regex extraction for pattern matching search term. Currently tokenization is used and regex filtering.

Use case or motivation behind the feature request
bloom filters are created faster using regex extraction and the results will differ from tokenized filters + regex filtering.

Additional context
Example case with partial pattern match of search term:
Search term: uuid=xyz-123-432-123 would match with \w{3}-\w{3}-\w{3}-\w{3} even when full pattern is not present in search term.