interface changes

added new data-strcutures for new sensors
new helper methods
fixed some issues

sensors/radio/setup/WiFiFingerprint.h

@@ -29,6 +29,8 @@ struct WiFiFingerprint {
 	/** ctor */
 	WiFiFingerprint(const Point3 pos_m) : pos_m(pos_m) {;}
 
+	/** ctor */
+	WiFiFingerprint(const Point3 pos_m, const WiFiMeasurements& measurements) : pos_m(pos_m), measurements(measurements) {;}
 
 
 	/** as each AP might be contained more than once (scanned more than once), group them by MAC and use the average RSSI */

sensors/radio/setup/WiFiFingerprints.h

@@ -4,7 +4,7 @@
 #include <fstream>
 
 #include "WiFiFingerprint.h"
-
+#include <iostream>
 
 /**
  * helper class to load and save fingerprints.