Added calculator::add method to the client
Added calculator::add method to the client

terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift,terminalcloud/thrift