File add-missing-include.patch of Package cura-engine

Index: CuraEngine-4.13.1/src/utils/math.h
===================================================================
--- CuraEngine-4.13.1.orig/src/utils/math.h
+++ CuraEngine-4.13.1/src/utils/math.h
@@ -4,6 +4,7 @@
 #ifndef UTILS_MATH_H
 #define UTILS_MATH_H
 
+#include <cstdint>
 #include <cmath>