UI: View As Render for Background Images

Add checkmark for "View as Render" to background
images in Properties / Camera data.

Pull Request: https://projects.blender.org/blender/blender/pulls/115120

scripts/startup/bl_ui/properties_data_camera.py

@@ -378,6 +378,8 @@ class DATA_PT_camera_background_image(CameraButtonsPanel, Panel):
 
                 if has_bg:
                     col = box.column()
+                    if bg.image is not None:
+                        col.prop(bg.image, "use_view_as_render")
                     col.prop(bg, "alpha", slider=True)
                     col.row().prop(bg, "display_depth", expand=True)