Summary of the new feature/enhancement

It's becoming more common for scripts to have a secret as a secure string, but needs to use it as a plain text string (like making a REST call). Anyone can search the web to find the APIs needed to convert the SecureString to plain text. It seems we should just make this a part of PowerShell so people aren't blindly copying and pasting script samples from websites.

Proposed technical implementation details (optional)

Proposal is to add -AsPlainText to ConvertFrom-SecureString cmdlet.