Added find_all(as_list=True) + set_current_element

[Psycho-Ray]

Optionally allows the find_all method to return a list with the found elements instead of a generator.

Pending:
(Docs): Returns should be changed to reflect the new return possibility?

[hhslepicka]

Thank you, @Psycho-Ray! The documentation for the return is fine as is since it is highlighted under the as_list parameter that it modifies the return. Since we are keeping the same behaviour as before all is good. 👍