Mark functions as override.
Mark functions as override.

Add missing "override" specifier to some functions that actually do
override in the consensus params.

namecoin/namecoin-core,namecoin/namecore,domob1812/namecore,namecoin/namecoin-core,pataquets/namecoin-core,pataquets/namecoin-core,namecoin/namecore,domob1812/namecore,namecoin/namecoin-core,domob1812/namecore,domob1812/namecore,namecoin/namecore,domob1812/namecore,namecoin/namecore,namecoin/namecore,namecoin/namecoin-core,pataquets/namecoin-core,namecoin/namecoin-core,pataquets/namecoin-core,pataquets/namecoin-core,namecoin/namecore,pataquets/namecoin-core,namecoin/namecoin-core,domob1812/namecore