text: Title: Table row sep argument not included in tikzpicture
  Body: The `row sep` is not included in the tikz picture.
  
  How I save my figure:
  ```python
  matplotlib2tikz.save(out, figure=fig, textsize=8, extra_axis_parameters=extra_axis_param, float_format="{:.5f}", table_row_sep=r"\\")
  ```
  
  Results in:
  ```latex
  \addplot [semithick, color0]
  table{%
  4.00000 0.00000\\5.00000 0.00000\\6.00000 0.00000\\7.00000 0.00000\\8.00000 0.00000\\9.00000 0.00000\\10.00000 0.00000\\11.00000 0.00000\\12.00000 0.00000\\13.00000 0.00000\\14.00000 0.00000\\15.00000 0.00000\\16.00000 0.00000\\17.00000 0.00000\\18.00000 0.00000\\19.00000 0.00000\\20.00000 0.00000\\21.00000 0.00000\\22.00000 0
  ```
  
  But is should be rendered/ouputed as:
  ```latex
  \addplot [semithick, color0]
  table[row sep=\\] {%
  4.00000 0.00000\\5.00000 0.00000\\6.00000 0.00000\\7.00000 0.00000\\8.00000 0.00000\\9.00000 0.00000\\10.00000 0.00000\\11.00000 0.00000\\12.00000 0.00000\\13.00000 0.00000\\14.00000 0.00000\\15.00000 0.00000\\16.00000 0.00000\\17.00000 0.00000\\18.00000 0.00000\\19.00000 0.00000\\20.00000 0.00000\\21.00000 0.00000\\22.00000 0
  ```
  
  