* Add autorest-preview pipeline
* Add emitternpminstall
* Always install
* Use shorter leg name
* Add short circuiting to emitter install
* Use language matrix function
* Don't look for subfolders in the matrix package folders
* Revert unnecessary eng/common changes
* Rewrite GetPullRequestUrl to Get-BuildSourceDescription
* Remove alias from Invoke-LoggedCommand
* Use invoke-expression instead of shelling out
* Add better job splitting
* Replace Folder with Directory
---------
Co-authored-by: Patrick Hallisey <pahallis@microsoft.com>
