Änderungen

add additional iterators to LinkedListModule (#23)

* add backIterator as well as staticItr and staticBackItr to LinkedListModule

* fix static iterators being destroyed, added the same functionalities to linkedlist

* fix static back iterator getting destroyed

* fix staticBackItr not getting destroyed with the list it belongs to

* change static iterators for linked llist initialization (now creates on first use rather than on list init)

* fix linkedlist/module tests not being in a separate file

* add null check for destruction of static iterators in linked list

add missing backstab damage setter for AbilityDefinitionWindWalk