Update template to provide the ability to create multiple databases

[gil0109]

This change would allow the ability to add multiple database creations as part of the helm chart.

Example:

update values.yaml with:

      users:
        - name: forms-flow-analytics
          password:
            type: AlphaNumeric
          databases:
            - forms-flow-analytics
          options: "CREATEROLE"
        - name: forms-flow-api
          password:
            type: AlphaNumeric
          databases:
            - forms-flow-api
          options: "CREATEROLE"