Add KubeVirt Tile (#20189)

* add kubevirt tile folder

* update kubevirt_api manifest and move dashboard to kubevirt tile

* delete configuration path

* ddev labeler sync

* update README

* add troubleshooting title

* update changelog

* fix validation issues

* fix json issue in manifest, and metadata csv metric short name

* Update kubevirt/README.md

Co-authored-by: Esther Kim <esther.kim@datadoghq.com>

* Update kubevirt/README.md

Co-authored-by: Esther Kim <esther.kim@datadoghq.com>

* rename new kubevirt dashboard to avoid collision with existing one

* remove metrics from metadata.csv

* Revert "remove metrics from metadata.csv"

This reverts commit 9d0fd06.

* sort metadata.csv metrics

* add kubevirt tile to metrics metadata validation exclude list

* fix ddev metrics exclusion to metrics instead of openmetrics block

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Co-authored-by: Esther Kim <esther.kim@datadoghq.com> 0cefae1

Author: github-merge-queue[bot]