VSCode .net installer extension requires user to disable powershell scripting excetion policy in advance

### Describe the bug.

Powershell disables script execution by default. The .net installer vscode extension is implemented as a powershell extension. That means it cannot work unless the user manually disables ps execution policy in advance. For users without powershell experience, this isn't a great experience.

REQUEST: execute the script with execution policy by-passed. (powershell -ExcecutionPolicy Bypass squid.ps1). Admin is still required to install, but this will get rid of the confusing error message unless powershell is disabled by group policy