added gps support

added compass support
added ui elements for gps and compass
added support for writing sensor data

ui/debug/PlotGPS.h

@@ -0,0 +1,32 @@
+#ifndef PLOTGPS_H
+#define PLOTGPS_H
+
+
+#include <QWidget>
+#include "../sensors/GPSSensor.h"
+
+#include <Indoor/data/Timestamp.h>
+
+class PlotGPS : public QWidget {
+
+	Q_OBJECT
+
+private:
+
+	GPSData gpsData;
+
+public:
+
+	explicit PlotGPS(QWidget *parent = 0);
+
+	void add(const Timestamp ts, const GPSData& data);
+
+signals:
+
+public slots:
+
+	void paintEvent(QPaintEvent*);
+
+};
+
+#endif // PLOTGPS_H