* Add `Get-SecureRandom` cmdlet
* update comments
* address Paul and Travis' comments
* Update test/powershell/Modules/Microsoft.PowerShell.Utility/Get-SecureRandom.Tests.ps1
Co-authored-by: James Truher [MSFT] <jimtru@microsoft.com>
* address codefactor
* address Ilya's feedback creating a base class for both cmdlets
* remove unused `using`
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Co-authored-by: James Truher [MSFT] <jimtru@microsoft.com>
