text: Title: Parallel Plot with independent vline
  Body: **Describe the solution you'd like**
  `ParallelCoordinates` plots each vline using a shared y scale. Instead of normalizing the values (using the parameter normalize), I'd like to keep original values, and allow each vline to have its own scale (scaling / moving the axis in order to fit current figsize)
  
  **Examples**
  I believe I've seen this behavior in other packages (i.e. plotly)
  
  ![image](https://user-images.githubusercontent.com/1222398/88701023-c4823580-d109-11ea-9323-4b6ba3b6e705.png)
  