Added wxUSE_DC_CACHEING and associated code to wxMSW

Added EnableCache, CacheEnabled to wxDCBase
Added mask source args to DoBlit, Blit
Added cache testing code to dragimag sample
Added wxSystemOptions, regenerated makefiles


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10962 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/dcprint.cpp

@@ -474,7 +474,8 @@ bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
                          wxCoord width, wxCoord height,
                          wxDC *source,
                          wxCoord xsrc, wxCoord ysrc,
-                         int WXUNUSED(rop), bool useMask)
+                         int WXUNUSED(rop), bool useMask,
+                         wxCoord xsrcMask, wxCoord ysrcMask)
 {
     bool success = TRUE;