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/WalkModuleSpread.h

@@ -0,0 +1,62 @@
+#ifndef WALKMODULESPREAD_H
+#define WALKMODULESPREAD_H
+
+#include "WalkModule.h"
+#include "WalkStateHeading.h"
+
+
+/**
+ * simply try to move away from the starting node as much as possible
+ */
+template <typename Node, typename WalkState> class WalkModuleSpread : public WalkModule<Node, WalkState> {
+
+private:
+
+	Point3 avg;
+
+public:
+
+	/** ctor */
+	WalkModuleSpread() {
+		;
+	}
+
+
+	virtual void updateBefore(WalkState& state) override {
+		(void) state;
+		avg = avg * 0.999 + state.startPos.inMeter() * 0.001;
+	}
+
+	virtual void updateAfter(WalkState& state, const Node& startNode, const Node& endNode) override {
+		(void) state;
+		(void) startNode;
+		(void) endNode;
+	}
+
+	virtual void step(WalkState& state, const Node& curNode, const Node& nextNode) override {
+		(void) state;
+		(void) curNode;
+		(void) nextNode;
+	}
+
+	double getProbability(const WalkState& state, const Node& startNode, const Node& curNode, const Node& potentialNode) const override {
+
+		(void) state;
+		(void) startNode;
+		(void) curNode;
+
+		const float dOld = avg.getDistance(curNode.inMeter());
+		const float dNew = avg.getDistance(potentialNode.inMeter());
+
+		if (dNew > dOld) {return 0.8;}
+		if (curNode.z_cm != potentialNode.z_cm) {return 0.8;}
+		if (dNew == dOld) {return 0.2;}
+		return 0;
+
+	}
+
+
+};
+
+
+#endif // WALKMODULESPREAD_H