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Add cudf::strings::contains_multiple
Description
Add new cudf::strings::contains_multiple
API to search multiple targets within a strings column.
Output is a table where the number of columns is the number of targets and each row is a boolean indicating that target was found at the row or not.
This PR is to help in collaboration with #16641
Checklist
- [x] I am familiar with the Contributing Guidelines.
- [x] New or existing tests cover these changes.
- [x] The documentation is up to date with these changes.