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

math/Distributions.h

@@ -6,5 +6,6 @@
 #include "distribution/Logistic.h"
 #include "distribution/Uniform.h"
 #include "distribution/VonMises.h"
+#include "distribution/Region.h"
 
 #endif // DISTRIBUTIONS_H