Rename seed-default and seed-secrets

[cdlliuy]

Per discussion in #91, I created a new issue to bring this up

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@pdettor I just curious, are the names seed-secret and seed-defaults configurable? If we put them into the end-user's namespace where the service/bind resource being created, I would like to use a more explicitly name , i.e. secret-ibm-cloud-operator and config-ibm-cloud-operator to avoid the deletion by end-user.

Answered by @vazirim
@cdlliuy Sure, we can rename.

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[vazirim]

This item is already part of #91