started removing KLib related code:

- assertions
- distributions
new helper methods
worked on stairs
worked on grid-walkers
worked on navigation

geo/Point3.h

@@ -1,7 +1,7 @@
 #ifndef POINT3_H
 #define POINT3_H
 
-#include <KLib/Assertions.h>
+#include "../Assertions.h"
 #include <cmath>
 
 /**
@@ -37,7 +37,7 @@ struct Point3 {
 
 	/** read-only array access */
 	float operator [] (const int idx) const {
-		_assertBetween(idx, 0, 2, "index out of bounds");
+		Assert::isBetween(idx, 0, 2, "index out of bounds");
 		if (0 == idx)	{return x;}
 		if (1 == idx)	{return y;}
 						return z;