[FCLayout] SpriteVisualElement does not have public properties minWidth, maxWidth, minHeight, maxHeight

You can see this bug in Catalyst, but only by using a build of Catalyst that includes Evtim's latest SDK changes and my latest Catalyst code, which is not yet available. Evtim knows about this issue, talk to him.

Steps to reproduce:
1. Open the attached project MissingProperties.fxp
2. Select the left-hand object, which is a Rect, and resize it using the bottom handle.
3. Now select the right-hand object, which is an Optimized Graphic, and resize it the same way.

Actual Results: the two objects look different.

Expected Results:the two objects look the same.

The reason for the difference is that Catalyst uses the min/maxWidth/Height properties to control how setLayoutBoundsSize() should work. This is OK for rects, bitmaps etc, but doesn't work for SpriteVisualElement because that class doesn't have the min/maxWidth/Height. We need these properties to be added to SpriteVisualElement so that one-dimensional resizing works consistently for all object types.