Call dnst keyset on zone register

[tertsdiepraam]

No description provided.

[bal-e]

As discussed, I'm not sure this code is in the right place. I believe it will be easier to fit in the key manager once some of my state stuff is done, but we can merge this in the meanwhile and I'll adjust it as part of my integration PR.

[ximon18]

@bal-e thought this should be done by the KeyManager. She might be right, but feels like a bit of a hassle right now? I'm not sure.

One problem with invoking dnst keyset create and dnst keyset init in ZoneLoader is that to use a KMIP server we will need to add a call to dnst keyset kmip add-server between those other two dnst keyset commands, and that will require passing KMIP server details to the ZoneLoader which otherwise has no need of that information at all, in fact ZoneLoader has no need to know that dnst keyset even exists. So yes it makes more sense to do this in the Key Manager.

[Philip-NLnetLabs]

keyset create and keyset init should be done in the module that also applies the policy to keyset. Because the policy has to be set between init and create.

[tertsdiepraam]

Alright, seems like everyone is in favor of the key manager. I'll try to update the PR.