Image and Text "sizeHints" are hidden in QML components

Some components have intrinsic size information, for example:

• Text: The size required to draw the full text, without eliding, with the current font and size.
• Image: The source image size

In Quick these intrinsic sizes are not always available, and when they are, it is not very consistent. For instance, the intrinsic text size is lost when a size is explicitly set to the Text component.

I suggest a property is exposed in these cases, maybe the already existing intrinsicSize.