`ErrorView` should support a custom ErrorView

[StartAutomating]

It would be nice if the error view was easy to customize.

Here's a slight suggestion as to how:

If $env:ErrorView is set, it should be treated as an expandable PowerShell string.

If it is present, it should take precedence over #2 and #3 .

[Jaykul]

Obviously, the whole point of the module is for the ErrorView to be easy to customize, and I think it already is:

1. Write a function ConvertTo-WhateverErrorview that takes n $InputObject parameter of type [System.Management.Automation.ErrorRecord]
2. Call Set-ErrorView Whatever or Import-Module ErrorView -Args Whatever

Additionally, the module already supports an ErrorView argument at import, and although it would be simple to make that consider an environment variable, I'm not sure I see the need, since you have to define a function anyway.

I can't imagine any useful way to format an error with a single string, so would you care to give an example?