BGE: Fix for [#34781] "bge.texture.ImageRender does not show Font object" reported by Monster.

This fix is mostly based off of HG1's patch from the bug report, which had ImageRender::Render() call KX_KetsjiEngine::RenderFonts(). However, I have moved RenderFonts() from KX_KetsjiEngine to KX_Scene where all of the other font and rendering functions are. The real fix for this mess would be to not have ImageRender::Render() have so much duplicate code from KX_KetsjiEngine::Render(), but that's a code cleanup problem for another day.

source/gameengine/VideoTexture/ImageRender.cpp

@@ -275,6 +275,8 @@ void ImageRender::Render()
 
 	m_scene->RenderBuckets(camtrans, m_rasterizer, m_rendertools);
 
+	m_scene->RenderFonts();
+
 	// restore the canvas area now that the render is completed
 	m_canvas->GetWindowArea() = area;
 }