Debug Tool: Show view filepath

[natanfelles]

Hello, @lonnieezell !

Today I remembered that Magento makes it possible to see the paths of the blocks in the frontend and considered this useful because it facilitated the development.

Then I implemented something in the CI, if it is in the development environment will have a button in the debugbar allowing to see the path of the views.

I want to open a PR for you to analyze, just tell me what you think I'll end later and send the PR.

Thanks!

[lonnieezell]

Now that you bring this up, this is actually something that I remember wondering how tough it would be to do, but never looked into. I'd be very interested in seeing what you came up with for this.