gdiplus: Add some missing or related prototypes and types.

Fix the GdipDrawRectangles() prototype.

include/gdiplusgpstubs.h

diff --git a/include/gdiplusgpstubs.h b/include/gdiplusgpstubs.h
index 7b08538..364f21c 100644
--- a/include/gdiplusgpstubs.h
+++ b/include/gdiplusgpstubs.h
@@ -69,12 +69,12 @@
 typedef PathData GpPathData;
 typedef LineCap GpLineCap;
 typedef RectF GpRectF;
+typedef Rect GpRect;
 typedef LineJoin GpLineJoin;
 typedef DashCap GpDashCap;
 typedef DashStyle GpDashStyle;
 typedef MatrixOrder GpMatrixOrder;
 typedef Point GpPoint;
 typedef WrapMode GpWrapMode;
-typedef Rect GpRect;
 
 #endif