In #1956, we removed runtime from the namespaces.
Now we have to update the example code.
For example, we moved:
Microsoft.ML.Runtime.Data to Microsoft.ML.Data
Microsoft.ML.Runtime.TimeSeriesProcessing to using Microsoft.ML.TimeSeriesProcessing
Microsoft.ML.Runtime.Learners to Microsoft.ML.Learners
cc: @JRAlexander, @codemzs