Add autotracking based "why did this rerender" to component explorer

[pzuraq]

Similar to this feature from the React Developer Tools. We should be able to provide detailed information to post-Octane users about what caused a particular re-render, down to the individual template binding.

[RobbieTheWagner]

Very much in favor of this 😃

[nummi]

Lets chat about what this should look like