OZG-3328 WIP new helm unittest framework

run_helm_test.sh

src/main/helm/templates/_helpers.tpl

src/test/helm/deployment_env_test.yaml

src/test/helm/deployment_host_aliases_test.yaml

src/test/helm/deployment_imagepull_secret_test.yaml

src/test/helm/deployment_optional_trust_store_test.yaml

src/test/helm/deployment_resources_test.yaml

src/test/helm/deployment_scrapeMetrics_test.yaml

src/test/helm/deployment_service_account_test.yaml

src/test/helm/deplyoment_cert_bindings_test.yaml

src/test/helm/imagepull_secret_test.yaml

src/test/helm/ingress-nginx-tests.yaml

src/test/helm/ingress_nginx_cors_test.yaml

src/test/helm/network_policy_test.yaml

src/test/helm/service_monitor_test.yaml

src/test/helm/service_test.yaml

src/test/unit-values.yaml