Cleaning up include statements

Removing inclusion of malloc.h. Adding crtdbg.h

src/input3.c

@@ -10,13 +10,16 @@ License:      see LICENSE
 Last Updated: 03/17/2019
 ******************************************************************************
 */
+#ifdef _DEBUG
+  #define _CRTDBG_MAP_ALLOC
+  #include <stdlib.h>
+  #include <crtdbg.h>
+#else
+  #include <stdlib.h>
+#endif
 
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
-#ifndef __APPLE__
-#include <malloc.h>
-#endif
 #include <math.h>
 
 #include "types.h"