ability to self-manage db creds

[smcavallo]

For those who deploy blackduck via helm, and maintain their helm charts and values.yaml files in source control, currently the database passwords are maintained in values.yaml.
For security best practices the postgres passwords should not be checked into source control.
This PR allows you to mark the creation of secrets as false - which will allow consumers to maintain their own <RELEASE>-blackduck-db-creds secrets using their own process and secrets management solution.
Ex.

postgres:
  createSecret: false

[skatzman-synopsys]

This is reasonable and is an improvement from a security and configuration flexibility perspective.

Internally filed HUB-32210 to backlog for prioritization.

[Chumper]

What is the priority on this? I am also looking for this. This seems like a small change, so any reason not to merge this as is?

[Chumper]

Can I assume this will not be implemented?

[m-zare]

This is a requirement for a more mature setup. Also, make the deployment possible without in-house customization as we are forced to do atm.
Can you prioritize, please?