0.4.3 with derive fix

introduce SearchIter

update version to 0.3.0

Refactor and fix multiple max_until recusion (#10)

* wip refactor engine

* wip 2 refactor engine

* wip 3 refactor engine

* wip 3 refactor engine

* wip 4 refactor engine

* wip 5 refactor engine

* refactor seperate Stacks

* fix clippy

* fix pymatch and search restore _stacks

* fix toplevel

* fix marks panic

* fix double max_until repeat context

* clearup

* update version to 0.2.0

(cargo-release) sre-engine version 0.1.0