OrangeTree, A Linked List Manager

How to use?

Simple, the only thing you have to do in order to make a struct into an OrangeTree linked list is to put 2 members in the start of your struct
void* OT_next
void* OT_prev
Done!

Etymology

Orange trees have branches, linked lists are kind of like branches idk
it's getting harder and harder to come up with names for this stuff