Add support for NetworkPolicy, additional labels+annotations and topologySpreadConstraints to charts

* Add support for NetworkPolicy, additional labels+annotations and topologySpreadConstraints to charts
Fixes #415

* Added additional service labels

* Added additional podLabels and documentation

* Added custom labels and annotations for statefulsets and deployments

* Added volume annotations and labels

* Fixed trailing spaces

* Updated releasenotes

* Fixed readme

* Make ingress configuration similar or identical (if possible) for all charts
Fixes groundhog2k/helm-charts#1316

* Fixed spaces

* add ingressClassName
Fixes #1311

* Fixed trailing spaces

* Updated gitea chart for Gitea 1.21.3