* Todo list
  - [X] Create arena allocator
  - [ ] Create dynamic arrays using arena allocator
  - [X] Create stack function caller for calling library deallocators
  - [ ] Create method of storing models and model data
  - [ ] implement textures and simple lighting
  - [ ] Figure out a simple game to make with this engine

* TODO Arena Allocator Requirements
  - [X] Sub arenas
  - [x] Arena infinite growth (not contiguous)
  - [ ] contiguous memory spaces for dynamic arrays that grow larger than the arena size
** Optional
   - [ ] free lists to reuse abandoned chunks of memory arenas