Support PowerShell installed from MSIX package

[maximpashuk]

Hi

Latest PowerShell 7.0.0-preview.3 has added support for MSIX package in addition to classic .msi package.

VSCode powershell extensions can't automatically pick up PowerShell installed from MSI package.
Workaround from issue #2110 works fine, I can use following pattern in VSCode:

"powershell.powerShellAdditionalExePaths": [
    {
        "exePath": "C:/Program Files/WindowsApps/Microsoft.PowerShell_7.0.0.3_neutral__8wekyb3d8bbwe/pwsh.exe",
        "versionName": "Powershell Core"
    }
]

And its working fine for me, but this will be fine to have built-in support in vscode-powershell

[TylerLeonhardt]

Yep! We should add this.

cc @SteveL-MSFT

[rjmholt]

@maximpashuk is this now solved for you?

[maximpashuk]

@rjmholt Not tested yet. Will wait while powershell team provide msix package for powershell 7 (see MicrosoftDocs/PowerShell-Docs#5519)

[TylerLeonhardt]

The added logic is in so we can close this for now. Once you get around to testing it and if it doesn't work, we can reopen!