Progress: Further work in TacocaT.

Progress: Further work in TacocaT.

The F_pipe is being returned on socket write calls because the socket.address.inet4.sin_family (and probably the socket.address.inet4.sin_family) is not being set.

The kt_tacocat_socket_flag_send_connect_e is not needed and is now removed.

Use f_socket_close_fast_e in f_socket_disconnect().

Pass f_socket_flag_signal_not_e as a flag to f_socket_write_stream() so that a signal is not received if f_socket_write_stream() returns F_pipe.