Search based on regex

[crookse]

Summary

What:

The .find(), .findOne(), and .search() logic require field values to match exactly. This feature requests that regex be used to match field values.

Why:

It would be nice to search based on partiality.

Acceptance Criteria

Below is a list of tasks that must be completed before this issue can be closed.

• Write documentation
• Write unit tests
• It works