Parser hangs with no error if content ends with unclosed escape sequence and no ending newline

[andrewtimberlake]

• Is your input CSV RFC 4180 compliant? no
• Are you interested in helping with a PR? yes, but had a look and wouldn’t know were to start

This test will hang until timeout

  test "decode CSV with incomplete quoting and no end of line" do
    results = ["a,b\n", "c,\"d,e"]
    |> Stream.map(& &1)
    |> CSV.Decoding.Decoder.decode()
    |> Enum.take(3)

    assert results == []
  end