add lowercased policy

[zukakosan]

This policy requires particular tag's existence and lowercased its value

[zukakosan]

@microsoft-github-policy-service agree company="Microsoft"

[gregslack78]

@zukakosan - While this is a unique policy, there are other policies that cover this functionality.

https://www.azadvertizer.net/azpolicyadvertizer/Audit-Tags-Mandatory.html - this can audit for an array of tags.

https://github.com/Azure/Community-Policy/tree/main/policyDefinitions/Tags/enforce-tag-casing-on-resources - This can enforce casing but allow you to pick whether you want to enforce upper or lower.

Would it make sense to combine these two in to one policy where you can put in an array of required tags and which casing to require?

[Joshua-Donovan]

@gregslack78 Thanks for reviewing this one!

I think this is different enough to justify merging into the community repository.

I agree, future improvements could include support for an Array of Tags and for the ability to select Lowercase or Uppercase like the referenced definitions.

[neiichango]

Agree, we can totally improve/accept the improvement of this in future, for now we are proceeding with the merge.