Windows: Compile error due to missing header

Caused by 9e4129feeb
Error: `undeclared identifier M_PI and M_PI_2`

Pull Request: https://projects.blender.org/blender/blender/pulls/118185

source/blender/blenkernel/intern/curve_bevel.cc

@@ -12,6 +12,8 @@
 #include <cstring>
 
 #include "BLI_listbase.h"
+/* Needed with MSVC for M_PI & M_PI_2 */
+#include "BLI_math_base.h"
 
 #include "MEM_guardedalloc.h"