Added DNS update protocol message
Added sync to clients
Update nameserver API with new fields
Added default NS groups
Added new dns-name flag for the management service append to peer DNS label
This PR simplifies Store and FileStore
by keeping just the Get and Save account methods.
The AccountManager operates mostly around
a single account, so it makes sense to fetch
the whole account object from the store.
Add DNS package and Nameserver group objects
Add CRUD operations for Nameserver Groups to account manager
Add Routes and Nameservers to Account Copy method
Run docker tests with timeout and serial flags
