7908: UISurfaceViewportControl

contains gdi+ based control and OpenGL based control
7908.1 : UISurfaceViewportControl
7909: InitRootGraphics with InnerViewportKind

Gdi+, OpenGL
7911: remove static CreateGraphicsPath()
7912: remove CurrentGraphicsPlatform class
Merge branch 'v_CurrentPlatform_revisit' into v_miniAgg
7913: fix SampleIFonts
Merge branch 'v_miniAgg' into v_dev