Support finding the origins of values in the stack

[pirapira]

In the state view of remix, it would be nice if we can click on a stack element and jump to the instruction where the element is produced.

Alternatively, moving the mouse cursor on to a stack element can change the color of the instruction that produces/consumes the stack element.

[chriseth]

The second suggestion sounds doable and very helpful. I think jumping around might be a bit hard on the UI side. We might also hilight and follow swap instructions that touch / move the element.

[Aniket-Engg]

We are waiting for the improvement in the debugger artifacts.