Update codeowners (#15869)

* Add codeowners to the file

* Add more changes to the codeowners file.

* Re-arrange codeowners file

* Move the Management and EngSys sections to the top of the file.

* Remove angled brackets from the file to not make it look like we have merge conflicts.

* Update CODEOWNERS

added some more folders to service labels I found

* Update CODEOWNERS

Update 2 owners.

* Update CODEOWNERS

Update the ARM - Core entry to not point to Azure.Core

* Remove the extra comment around the actual entries

Doing this so that we reduce the amount of comments in the file which could lead to confusion.

* Update CODEOWNERS

Add the Event Hubs, Event Grid and Service Bus owners.

* Update CODEOWNERS

Update Event Hubs CODEOWNER

* Update CODEOWNERS

Update EventGrid.

* Update CODEOWNERS

Fix issue with the PR Label.

* Update CODEOWNERS

Incorporate #16200

* Update CODEOWNERS

Incorporate #16363

* Update CODEOWNERS

Incorporate #16440

* Update CODEOWNERS

Ensure that for WebJobs we label PRs.

* Update CODEOWNERS

Clarify the storage section.

* Update CODEOWNERS

Remove person not on the team anymore.

Co-authored-by: Meera Haridasa <22649188+meeraharidasa@users.noreply.github.com>