Align the pod name pattern for the redis and postgres pods.

[heww]

All pods' name begins with the name of the harbor cluster excepted redis and postgres. Can we make the pod name of redis
and postgres also begins with the name of the harbor cluster?

[Ghostbaby]

• Redis
  Prefix rfr is Redis-operator used to mark redis server pod, and rfs is used to mark redis sentinel pod, harbor-cluster-operator can`t change that naming rules.

• Postgres
  The Postgres pod naming rule is TeamID-CRName, we can use harbor cluster name to define TeamID, use database to define Postgres cluster name, like that sample-cluster-database.

@heww @steven-zou