minor  changes

    main.cpp:
        - worked on ordering of main loop.
        - repositioned arduino->proceed() to the
          top of the loop.
        - changed the failure of the camera
          device to non-fatal

    OCR.h:
        - changed run() to scan() to try and make
          it more obivious what's being called for.

    Billboard.h:
        - still working on how to store 34 (36?)
          bits effectively and efficiently.

I have two methods for the bit storage for the segment display:
    - bit fields
    - byte mask an array

Bit fields allow easier assignment of the various segments, but
    need to be copied away with a memcpy before they can be
    accessed in a recognizable form. The resultant ends up one
    byte too heavy and will need some formatting work done before
    it gets sent to the segment display.

Array masks put the bits into a predictable location, is exactly
    the size needed, and is already in an array, ready for trans-
    mission to the display. This does require some abstracted
    macros to make the code easier to read.

Will likely go with the masks since they have two out of the three.