New Policy/Assignment: Resource Group and Resource locations should match

[Springstone]

Overview/Summary

New Policy/Assignment: Resource Group and Resource locations should match.
While there is a built-in https://www.azadvertizer.net/azpolicyadvertizer/0a914e76-4921-4c19-b460-a2d36003525a.html it is AUDIT only, and we want flexibility to DENY, which is why we're providing a custom policy.

This PR fixes/adds/changes/removes

1. Adds new policy and assignment

Breaking Changes

1. N/A

Testing Evidence

Testing URLs

Azure Public

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.
• Ensured contribution guidance is followed.
• Updated relevant and associated documentation.
• Updated the "What's New?" wiki page (located: /docs/wiki/whats-new.md)

[jtracey93]

Do we need a custom policy here? The built-in doesnt have an effect parameter so we can use overrides like we do for Deny-UnmanagedDisk

[Springstone]

Do we need a custom policy here? The built-in doesnt have an effect parameter so we can use overrides like we do for Deny-UnmanagedDisk

Good point, was on auto-pilot 🤣