huge commit

- worked on about everything
- grid walker using plugable modules
- wifi models
- new distributions
- worked on geometric data-structures
- added typesafe timestamps
- worked on grid-building
- added sensor-classes
- added sensor analysis (step-detection, turn-detection)
- offline data reader
- many test-cases

grid/walk/v2/modules/WalkStateHeading.h

@@ -0,0 +1,16 @@
+#ifndef WALKSTATEHEADING_H
+#define WALKSTATEHEADING_H
+
+#include "../../../../geo/Heading.h"
+
+struct WalkStateHeading {
+
+	Heading startHeading;
+
+	/** ctor */
+	WalkStateHeading(const Heading& curHeading) : startHeading(curHeading) {;}
+
+};
+
+
+#endif // WALKSTATEHEADING_H