Changes to make it work in windows again;

New header util/platform.hpp for platform specific stuff that doesn't go elsewhere;
Changed resource names from "CURSOR_SOMETHING" to "cursor/something", so it matches the filenames (in progress for other resource types).

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@190 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/util.hpp

@@ -39,6 +39,9 @@ void draw_checker(RotatedDC& dc, const RealRect&);
 /// Load an image from a resource
 Image load_resource_image(const String& name);
 
+/// Load a cursor from a resource
+wxCursor load_resource_cursor(const String& name);
+
 // ----------------------------------------------------------------------------- : Platform look
 
 /// Draws a border for a control *around* a rect