test including stb_c_lexer header independnet of implementation

tests/test_cpp_compilation.cpp

@@ -5,6 +5,7 @@
 #include "stb_rect_pack.h"
 #include "stb_truetype.h"
 #include "stb_image_write.h"
+#include "stb_c_lexer.h"
 #include "stb_perlin.h"
 #include "stb_dxt.h"
 #include "stb_divide.h"
@@ -46,7 +47,6 @@ void my_free(void *) { }
 #include "stb_image_write.h"
 #include "stb_perlin.h"
 #include "stb_dxt.h"
-#include "stb_c_lexer.h"
 #include "stb_divide.h"
 #include "stb_herringbone_wang_tile.h"
 #include "stb_ds.h"