Summary of the new feature/enhancement

.Net Core team announced new nuget package with IDataView.
https://blogs.msdn.microsoft.com/dotnet/2019/02/07/announcing-ml-net-0-10-machine-learning-for-net/
https://github.com/dotnet/machinelearning/blob/master/docs/code/IDataViewDesignPrinciples.md

We could benefits from IDataView:

• use for some cmdlets such as Import/Export-Csv Import-CSV has very high filesize-to-memory consumption ratio of around 50 #7603, Select-String and others
• use for integrating in unified way with other systems