Demonstrates how to configure a the USB device controller as a HID keyboard
class device

Example functionality:
  The EvKit should enumerate as a HID Keyboard device.
    1. LED0 will illuminate once enumeration and configuration is complete.
    2. Open a text editor on the PC host and place cursor in edit box.
    3. Pressing pushbutton SW1 will cause a message to be typed in on a
       virtual keyboard one character at a time.
