Fix build error on Windows without precompiled headers

Recent refactoring to use uint relied on indirect includes and precompiled
headers for uint to be defined. Explicitly include BLI_sys_types where this
type is used now.

source/blender/freestyle/intern/python/UnaryFunction0D/BPy_UnaryFunction0DVectorViewShape.cpp

@@ -11,6 +11,8 @@
 
 #include "UnaryFunction0D_vector_ViewShape/BPy_GetOccludersF0D.h"
 
+#include "BLI_sys_types.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif