Add more telemetry

We need to add new telemetry to answer following questions:

1. Is PMM enabled? - Just check spec.pmm.enabled
2. Is Helm chart used to deploy? - Operator deployment and custom resource has specific labels (i.e helm.sh/chart) when deployed with helm.
3. Are sidecars used? - Yes, if any replset has sidecars > 0
4. Are backups used? - Yes, if spec.backup.storages has a configuration
5. How big is the cluster? - Just send status.size
6. Is Point-in-time recovery used? - Yes, if spec.backup.pitr.enabled
7. Are physical backups scheduled? Yes, if spec.backup.tasks has an element with backup type = physical