ibc-transfer: enable transfer parameter (cosmos#6607)

* ibc-transfer: enable transfer parameter

* param_test.go

* update tests and types

* gRPC test

* relay logic and spec update

* fix tests

* unused param

app.go

@@ -263,7 +263,7 @@ func NewSimApp(
 
 	// Create Transfer Keepers
 	app.TransferKeeper = ibctransferkeeper.NewKeeper(
-		appCodec, keys[ibctransfertypes.StoreKey],
+		appCodec, keys[ibctransfertypes.StoreKey], app.GetSubspace(ibctransfertypes.ModuleName),
 		app.IBCKeeper.ChannelKeeper, &app.IBCKeeper.PortKeeper,
 		app.AccountKeeper, app.BankKeeper, scopedTransferKeeper,
 	)
@@ -533,6 +533,7 @@ func initParamsKeeper(appCodec codec.BinaryMarshaler, legacyAmino *codec.LegacyA
 	paramsKeeper.Subspace(slashingtypes.ModuleName)
 	paramsKeeper.Subspace(govtypes.ModuleName).WithKeyTable(govtypes.ParamKeyTable())
 	paramsKeeper.Subspace(crisistypes.ModuleName)
+	paramsKeeper.Subspace(ibctransfertypes.ModuleName)
 
 	return paramsKeeper
 }