More API improvements.

[Speiger]

-Added: A way to create a Panel without adding it into the probe.
-Added: Turning a ProbeInfo into a Element so you can actually add it without a unsave cast.

Reason i add this:
If you want to fully control how elements are added you have to use the API implementation there is no way to add a element without 5 extra steps to just create a panel without adding it to the current info.

Also this new feature requires that IProbeInfos are convertable to IElement so you can actually add them.

This provides a lot more control.

Note: This could break custom implementations if they didn't implement the new API methods.
Another note: This technically could be moved into the "Style" Creator API if wanted. But this would not work idealy with dynamic data. Though maybe i am adding that later to it.

[Speiger]

@McJty do you plan to implement something like this into your "IStyleManager" or create like something "IElementManager"?
So panels can be created without having to access the implementation to create a panel?