fix: Do not #include <sys/types.h> on Windows

Instead, we provide our own typedef for mode_t, uid_t and gid_t, and we get time_t from <time.h>.

minitar.h

@@ -10,7 +10,15 @@
 #define MINITAR_H
 #include <stddef.h>
 #include <stdio.h>
+#include <time.h>
+
+#ifdef _MSC_VER
+typedef unsigned int mode_t;
+typedef unsigned int gid_t;
+typedef unsigned int uid_t;
+#else
 #include <sys/types.h>
+#endif
 
 struct minitar
 {

src/util.c

@@ -13,7 +13,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sys/types.h>
 
 #ifndef __TINYC__
 #include <stdnoreturn.h>