Added msvcrt headers limits.h and math.h.

diff --git a/include/msvcrt/math.h b/include/msvcrt/math.h
new file mode 100644
index 0000000..0cba867
--- /dev/null
+++ b/include/msvcrt/math.h
@@ -0,0 +1,12 @@
+#ifndef __WINE_MATH_H
+#define __WINE_MATH_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __WINE_MATH_H */