Added existing fastclock implementation.

Added DjDebug, DjConfig.

src/DjFastclockScanner.h

@@ -0,0 +1,25 @@
+/* DjFastclockScanner -- collect fastclock server names
+ */
+
+#ifndef _DjFastclockScannerIncluded
+#define _DjFastclockScannerIncluded true
+
+#include <Arduino.h>
+#include "DjDebug.h"
+
+#define MAX_CLOCKS 10
+
+class FastclockScanner {
+	public:
+		FastclockScanner(Debug& _debug):debug(_debug) {};
+		void addClock(String clockName);
+		void addClock(const char * clockName);
+		String *getKnownClocks() { return knownClocks; }
+		int getNumberOfKnownClocks() { return numberOfKnownClocks; }
+	private:
+		Debug& debug;
+		static String knownClocks[];
+		static int numberOfKnownClocks;
+};
+
+#endif