Dependency-specific configuration should not be part of Obelisk definitions

[wkerckho]

The class OblxConfig should not contain dependency-specific configuration properties, these should be encapsulated in the plug-ins that provide the implementation for interfacing with a dependency.

This also implies that the system will not know upfront, which config properties will be required for configuring the concrete implementations (via plug-ins) for the DataStore, MetaStore, etc. To support this, changes will also be needed to the common helm chart (affecting the way the configuration is loaded into environment variables).

[github-actions]

The issue had no activity for 30 days, mark with Stale label.