add save

inc/sys.hpp

@@ -0,0 +1,8 @@
+
+
+namespace sys
+{
+  size_t saveDataToFile(const char *filename, const char *data, size_t size);
+  size_t loadDataFromFile(const char *filename, char *data, size_t size);
+  bool fileExists(const char *filename);
+}

inc/values/Dna.hpp

@@ -4,8 +4,6 @@
 #include <cinttypes>
 #include <array>
 
-#include <raylib.h>
-
 #define MAX_DEPTH 8
 #define MAX_POSIBLE_DEPTH 11
 static_assert(MAX_DEPTH <= MAX_POSIBLE_DEPTH);