DataFrame: Add support for interfacing with System.Data.DataTable

Background: I am using [**Kusto.Data**](https://www.nuget.org/packages/Microsoft.Azure.Kusto.Data/) which can execute queries and return results using `DataTable`/`IDataReader` from **System.Data**.

Would love to see support for interfacing between classes in System.Data and Microsoft.Data.Analysis. This would allow direct usage of DataFrames with Kusto query results in .NET.