Replace Sysrepo with a different configuration setup
Sysrepo datastore turned out to be too unstable for us. If DNS Probe crashes Sysrepo datastore's shared memory can be irreversibly corrupted and all configuration is lost. Furthermore the shared memory has to be manually cleared before Sysrepo can be used again.
Replace Sysrepo with a combination of local configuration file and an API for runtime management of DNS Probe.