Fix header import

Author: Flova

bitbots_motion/bitbots_splines/include/bitbots_splines/newton_binomial.hpp

@@ -6,8 +6,8 @@ The original files can be found at:
 #ifndef BITBOTS_SPLINES_INCLUDE_BITBOTS_SPLINES_NEWTON_BINOMIAL_H_
 #define BITBOTS_SPLINES_INCLUDE_BITBOTS_SPLINES_NEWTON_BINOMIAL_H_
 
-#include "combination.h"
-#include "polynom.h"
+#include "combination.hpp"
+#include "polynom.hpp"
 
 namespace bitbots_splines {
 

bitbots_motion/bitbots_splines/include/bitbots_splines/spline.hpp

@@ -9,7 +9,7 @@ The original files can be found at:
 #include <iostream>
 #include <vector>
 
-#include "polynom.h"
+#include "polynom.hpp"
 
 namespace bitbots_splines {