Add invalid characters logic

[Jefajers]

Overview/Summary

This PR closes #691 by adding a function to remove invalid characters at filename creation.

The purpose is to ensure that even a resource in Azure with a name containing characters not valid as filenames are handled appropriately and harmonized without effecting other aspects.

This PR fixes/adds/changes/removes

1. Adds Remove-AzOpsInvalidCharacters.ps1
2. Changes AzOpsScope.ps1

Breaking Changes

1. N/A

Testing Evidence

Testing for ChildResource included in PR. In addition to that tests have been performed at Management group, Subscription, Resource group and Resource scope.

As part of this Pull Request I have

• Checked for duplicate Pull Requests
• Associated it with relevant issues, for tracking and closure.
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated relevant and associated documentation.

[daltondhcp]

LGTM 🎆