## Summary of the Pull Request
This is a follow up to #9300. Now that we have names on our windows, it would be nice to see who is named what. So this adds two actions:
* `identifyWindow`: This action will pop up a little toast (#8592) displaying the name and ID of the window, and is bound by default.
![identify-window-toast-000](https://user-images.githubusercontent.com/18356694/111529085-bf710580-872f-11eb-8880-b0b617596cfc.gif)
* `identifyWindows`: This action will request that ALL windows pop up that toast. This is meant to feel like the "Identify" button on the Windows display settings. However, sometimes, it's wonky.
![teaching-tip-dismiss-001](https://user-images.githubusercontent.com/18356694/111529292-fe06c000-872f-11eb-8d4a-5688e4ce1175.gif)
That's being tracked upstream on https://github.com/microsoft/microsoft-ui-xaml/issues/4382
Because it's so wonky, we won't bind that by default. Maybe if we get that fixed, then we'll change the default binding from `identifyWindow` to `identifyWindows`
## References
## PR Checklist
* [x] Closes https://github.com/microsoft/terminal/projects/5#card-51431492
* [x] I work here
* [x] Tests added/passed
* [ ] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
You may note that there are some macros to make interacting with lots and lots of actions easier. There's a lot of boilerplate whenever you need to make a new action, so I thought: "Can we make that easier?"
Turns out you can make it a _LOT_ easier, but that work is still behind another PR after this one. Get excited