Draw a systems architecture diagram

[handemcginty]

There are couple of diagrams feeding into this task that are currently active: https://docs.google.com/drawings/d/1R-nIfezUy4o_5KVuvw9Vg7QndsS5_SeO2xp5kEQrEFU/edit

https://docs.google.com/drawings/d/186RBvC4MHdYO9kjXijlqM9VQGUJ2v_Jc0kIdh68PqGY/edit