Confconsole hooks - e.g. change IP hooks

[JedMeister]

I'm not sure how common it's likely to be, but support for configurable hooks for confconsole actions would be really cool IMO.

The specific use case I'm thinking of if the Domain Controller. The firstboot scripts set up the domain, but they also assume that the configured IP address is one that is to be used. If you update the IP address, there are steps needed to be taken to update config.