Helm chart dependency updates and support for extraVolumes and -Mounts (#766)

* Helm chart updates

* set target branch to master for chart testing

charts/hapi-fhir-jpaserver/ci/extra-volumes-values.yaml

@@ -0,0 +1,11 @@
+extraVolumes:
+  - name: config-kube-root-ca
+    configMap:
+      name: kube-root-ca.crt
+      items:
+        - key: ca.crt
+          path: ca.crt
+
+extraVolumeMounts:
+  - name: config-kube-root-ca
+    mountPath: /etc/test