Add the pifacecad connection type to hd44780 driver (by Thomas Preston). This

is for the PiFace Contral And Display device from http://www.piface.org.uk/.

server/drivers/hd44780-pifacecad.h

@@ -0,0 +1,9 @@
+#ifndef HD_PIFACECAD_H
+#define HD_PIFACECAD_H
+
+#include "lcd.h"		/* for Driver */
+
+/* initialise this particular driver */
+int hd_init_pifacecad(Driver *drvthis);
+
+#endif