standard compiler compatibility changes (#3040)

* move math to cmath

* replace stdarg to cstdarg

* change stdint to stdint.h

* minor fixes

* change stdio to cstdio

* change stdlib to stdlib

* renamed ctype to cctype

* fix missing argument for UNSET_FLAG

src/d/actor/d_a_obj_cwall.cpp

@@ -12,7 +12,7 @@
 #include "Z2AudioLib/Z2Instances.h"
 #include "d/d_cc_d.h"
 #include "d/d_com_inf_game.h"
-#include <math>
+#include <cmath>
 
 void daObjCwall_c::initBaseMtx() {
     mWallModel->setBaseScale(scale);