ZKCM:
 * timerDeviceC: Moved some method definitions around.

* Replaced preprocessor define tokens with enumerations in several places.
* Began defining wait-queue structure.
* Corrected source comments in various places.
* Half-implemented the call-in work required to allow timer devices to
  call into the kernel and queue IRQ events.
* Deleted the "moduleApis" include folder, which has been superceded by the
  ZKCM APIs.