geometry changes/fixes/new features

new grid walkers + fixes
new test-cases
worked on step/and turn detection
android offline-data-reader
worked on vap-grouping

grid/walk/v2/modules/WalkModuleFavorZ.h

@@ -41,7 +41,7 @@ public:
 		(void) startNode;
 
 		if (curNode.z_cm != potentialNode.z_cm) {
-			return 8;
+			return 40;
 		} else {
 			return 1;
 		}