[#88] container: Use large scope for container contract migration

With contract migration from v0.8.0 to v0.9.0 we need to replace
structures in contract memory. This produces native contract calls
that are not available in scope of `management.Update`. Therefore
we need to apply new scope first.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

container/container_contract.go

@@ -108,7 +108,7 @@ func Migrate(script []byte, manifest []byte, data interface{}) bool {
 		return false
 	}
 
-	management.UpdateWithData(script, manifest, data)
+	contract.Call(interop.Hash160(management.Hash), "update", contract.All, script, manifest, data)
 	runtime.Log("container contract updated")
 
 	return true