Parameter Help auto generation in PowerShell Functions

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

If you go above the parameter block of a function and write "##" the parameter help template is pre-generated automatically by the PowerShell Extension. However currently this generates:

<#
    .SYNOPSIS
    Short description
    
    .DESCRIPTION
    Long description
    
    .PARAMETER exampleParam
    Parameter description
    
    .EXAMPLE
    An example
    
    .NOTES
    General notes
    #>

However, it is best practice to also specify the return value of your function by using ".OUTPUTS", therefore it would be nice if this could be added to the default template / if the default template could be configured in the settings.json.

Proposed Design

This could be accomplished by either:

Static Design

Add ".OUTPUTS" to the current template

Dynamic Design

Add the possibility to specify the fields in the template in a list like:

 "powershell.extentention" : {
      "parameterHelp" : {
           "generatorTemplateFields" : [
               ".SYNOPSIS", ".DESCRIPTION", ".PARAMETER", ".EXAMPLE", ".NOTES", ".OUTPUTS"
            ]
      }
 }

No files or tests are named. Start by locating the parameter-help generator and the settings definitions for the PowerShell extension, then compare the existing template with the proposed .OUTPUTS field and generatorTemplateFields setting. Done means either adding .OUTPUTS to the generated help or documenting and implementing configurable template fields, with coverage for the selected behavior.