[#987] ir: Add parsing `subnet` script hash from `NNS` contract

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

pkg/innerring/contracts.go

@@ -19,6 +19,7 @@ type contracts struct {
 	proxy      util.Uint160 // in morph
 	processing util.Uint160 // in mainnet
 	reputation util.Uint160 // in morph
+	subnet     util.Uint160 // in morph
 	neofsID    util.Uint160 // in morph
 
 	alphabet alphabetContracts // in morph
@@ -61,6 +62,7 @@ func parseContracts(cfg *viper.Viper, morph *client.Client, withoutMainNet, with
 		{"contracts.container", client.NNSContainerContractName, &result.container},
 		{"contracts.audit", client.NNSAuditContractName, &result.audit},
 		{"contracts.reputation", client.NNSReputationContractName, &result.reputation},
+		{"contracts.subnet", client.NNSSubnetworkContractName, &result.subnet},
 		{"contracts.neofsid", client.NNSNeoFSIDContractName, &result.neofsID},
 	}
 

pkg/morph/client/nns.go

@@ -30,6 +30,8 @@ const (
 	NNSProxyContractName = "proxy.neofs"
 	// NNSReputationContractName is a name of the reputation contract in NNS.
 	NNSReputationContractName = "reputation.neofs"
+	// NNSSubnetworkContractName is a name of the subnet contract in NNS.
+	NNSSubnetworkContractName = "subnet.neofs"
 )
 
 var (