Allow directory schema customization per pod

[aldaris]

When working on schema customizations, it looks like that custom schema updates are being picked up by both ds-idrepo and ds-cts pods. This can cause problems when someone tries to create a custom objectclass that references attributes only available in the ds identity-store schema for example. It would be great if forgeops could be updated to have a similar schema/$POD_NAME approach like what we have for calling the post-init/setup scripts.

Alternatively custom schema updates should be only applicable to ds-idrepo pods perhaps?

[lee-baines]

It's a good shout. We could easily make it different for both servers. I agree, unlikely anyone is interested in updating tokens schema but they should have the flexibility. I'll add something on the backlog to look into it