added vector2.c

src/math/vector2.c

@@ -0,0 +1,8 @@
+#include "arc/math/vector2.h"
+#include <math.h>
+
+void ARC_Vector2_Normalize(ARC_Vector2 *vector){
+    float length = sqrtf((vector->x * vector->x) + (vector->y * vector->y));
+    vector->x /= length;
+    vector->y /= length;
+}