Add thrift_client:send_call which sends a function call but doesn't read a response. Summary: This is for logging applications with thrift_disk_log_transport, so the function calls logged don't necessarily have to be async void Test plan: Added to test_disklog.erl
incubator/thrift/trunk/lib/alterl/src/thrift_client.erl
incubator/thrift/trunk/test/erl/src/test_disklog.erl