Support C# plotting libraries + Update Plot.NET from 3.0.1 to latest.

[gmwhipple]

Expected Behavior

support Xplot and Oxyplot C# libraries in the research environment (jupyter notebooks) Update Plotly.NET.

Actual Behavior

using XPlot.Plotly; using OxyPlot; using OxyPlot.Series;

(17,7): error CS0246: The type or namespace name 'XPlot' could not be found (are you missing a using directive or an assembly reference?)

(18,7): error CS0246: The type or namespace name 'OxyPlot' could not be found (are you missing a using directive or an assembly reference?)

System Information

cloud environment, using futures so has to be in the cloud.

Checklist

• [x ] I have completely filled out this template
• [x ] I have confirmed that this issue exists on the current master branch
• [x ] I have confirmed that this is not a duplicate issue by searching issues

[Martin-Molinero]

Note will skip the following:

• Xplot is no longer maintained and suggests using Plotly.
• Do not think Oxyplot would be compatible with Lean research: supports WPF, Windows 8, Windows Phone, Windows Phone Silverlight, Windows Forms, Silverlight, GTK#, Xwt, Xamarin.iOS, Xamarin.Android, Xamarin.Forms and Xamarin.Mac. please correct me if I'm wrong

[Martin-Molinero]

Reopening so we can revisit adding newer version of plotly see https://github.com/plotly/Plotly.NET/issues/409