Add render target support, and ensure there is a front and back buffer
created during device creation.

diff --git a/include/d3d9types.h b/include/d3d9types.h
index 480a0bc..a98cb4a 100644
--- a/include/d3d9types.h
+++ b/include/d3d9types.h
@@ -1306,6 +1306,7 @@
     D3DPOOL             Pool;
     UINT                Size;
     D3DMULTISAMPLE_TYPE MultiSampleType;
+    DWORD               MultiSampleQuality;
     UINT                Width;
     UINT                Height;
 } D3DSURFACE_DESC;