Windows Security deletes Chromium file

See electron/electron#26151.

Would be nice if `e init` did something about this. Either warning the user, or adding the exclusion automatically (would require running something as Administrator).

A little bit of Googling gives me:
* `powershell -Command Start-Process powershell -Verb runAs` as a way to elevate `powershell` (prompting the user)
* `Get-MpPreference` in `powershell` will show you the exclusions under `ExclusionPath`.