Some graphics and movement

Second day of the game jam. I managed to animat the protein translation process. However, I still have to figure out how to ensure proteins get translated again after the first time. I should move to a fixed size font for the display of nucleic acids.

Also the game now reacts to keypresses and we can move around the box to select which base to mutate. Implementation of mutation is still left over from task list. New tasks:

* move to monospaced font for DNA

* restart protein translation after stop code

* implement tranversion and transition

* print resources (amino acids). Generally map out where to display all the information.