Move new Class Driver powered demos to a new ClassDriver subdirectory, re-add old low level demos to a LowLevel subdirectory.

Demos/Device/ClassDriver/Keyboard/Keyboard.txt

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+/** \file
+ *
+ *  This file contains special DoxyGen information for the generation of the main page and other special
+ *  documentation pages. It is not a project source file.
+ */
+ 
+/** \mainpage Keyboard Device Demo
+ *
+ *  \section SSec_Info USB Information:
+ *
+ *  The following table gives a rundown of the USB utilization of this demo.
+ *
+ *  <table>
+ *   <tr>
+ *    <td><b>USB Mode:</b></td>
+ *    <td>Device</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>USB Class:</b></td>
+ *    <td>Human Interface Device (HID)</td>
+ *   </tr>
+ *   <tr> 
+ *    <td><b>USB Subclass:</b></td>
+ *    <td>N/A</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>Relevant Standards:</b></td>
+ *    <td>USBIF HID Specification, USBIF HID Usage Tables</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>Usable Speeds:</b></td>
+ *    <td>Low Speed Mode, Full Speed Mode</td>
+ *   </tr>
+ *  </table>
+ *
+ *  \section SSec_Description Project Description:
+ *
+ *  Keyboard demonstration application. This gives a simple reference application
+ *  for implementing a USB Keyboard using the basic USB HID drivers in all modern
+ *  OSes (i.e. no special drivers required). It is boot protocol compatible, and thus
+ *  works under compatible BIOS as if it was a native keyboard (e.g. PS/2).
+ *  
+ *  On start-up the system will automatically enumerate and function
+ *  as a keyboard when the USB connection to a host is present. To use
+ *  the keyboard example, manipulate the joystick to send the letters
+ *  a, b, c, d and e. See the USB HID documentation for more information
+ *  on sending keyboard event and key presses.
+ *
+ *  \section SSec_Options Project Options
+ *  
+ *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
+ *
+ *  <table>
+ *   <tr>
+ *    <td>
+ *     None
+ *    </td>
+ *   </tr>
+ *  </table>
+ */