## Summary of the Pull Request
This is the spec for adding commandline arguments to the Windows Terminal. This includes design work for a powerful future version of the commandline args for the Terminal, as well as a way that system could be implemented during 1.0 to provide basic functionality, while creating commandlines that will work without modification in (a future Windows Terminal version).
## References
Referenced in the course of this spec:
* #607 Feature Request: wt.exe supports command line arguments (profile, command, directory, etc.)
* #1060 Add "open Windows terminal here" into right-click context menu
* #576 Feature Request: Task Bar jumplist should show items from profile
* #1357 Draft spec for adding profiles to the Windows jumplist
* #2080 Spec for tab tear off and default app
* #632 [Question] Configuring Windows Terminal profile to always launch elevated
* #2068 New window key binding not working
## PR Checklist
* [x] Specs #607
* [x] I work here
* [x] _it's a spec_
## Detailed Description of the Pull Request / Additional comments
Read the spec.
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* Let's commit this bewfore I go hog-wild on new-window
* new-window vs new-tab discussion
* Well, this is ready for a review
* -P -> -% for --percent
* Big note on powershell
of course, powershell has to use `;` as the command seperator
* Minor typos
* This is a lot of feedback from PR
bigly, it's focus-pane and focus-tab
* Add notes on implementation, based on investigation
* Apply suggestions from @miniksa
* some updates after actually implementing the thing
* some minor things from PR
* Apply suggestions from code review
Co-Authored-By: Dustin L. Howett (MSFT) <duhowett@microsoft.com>
* comments from dustin's latest review
* more comments from dustin
* mostly just typos
Co-authored-by: Dustin L. Howett (MSFT) <duhowett@microsoft.com>