Conways game of life

An implementation of Conway's game of life written in C using the SDL library.
This is expected to run on windows.

Keymappings:

- Q            - Quit
- K            - Kill all cells
- R            - Repopulate the board
- W            - Up
- A            - Left
- S            - Down
- D            - Right
- Space        - Pause
- Up-Arrow     - Speed the simulation up
- Down-Arrow   - Slow the simulation down
- Mouse button - Change the clicked cell's state
- Scroll wheel - Zoom