Fixed build.

bgfxgraphics.mod/bgfxgraphics.bmx

@@ -68,6 +68,9 @@ Type TGfxGraphics Extends TGraphics
 		_context=0
 	End Method
 	
+	Method Resize:Int(width:Int, height:Int) Override
+	End Method
+	
 	Field _context:Byte Ptr
 	
 End Type

bgfxgraphics.mod/win32_gfx.c

@@ -25,7 +25,7 @@
 */
 #include <windows.h>
 
-#include "bgfx/c99/platform.h"
+#include "bgfx/c99/bgfx.h"
 #include <brl.mod/systemdefault.mod/system.h>
 
 static const wchar_t *CLASS_NAMEW=L"BlitzMax BgfxGraphics";