- Changed directory structure significantly, moving gfx api implementations to fennec/renderers

- Began new overarching window interface
 - Began outlining renderer interfaces
 - Began a binary tree implementation in bintree.h, this will act as a generalized binary tree, then red-black tree will be implemented on top of it for sequences (ordered sets)

planning/CONTENTS.md

@@ -1,4 +1,6 @@
 
+<!-- I release these notes into the public domain -->
+
 # Planning Documentation for fennec
 
 ## Table of Contents