The samples that are part of the Microsoft.ML.Samples project need to have a corresponding baseline test

[sfilipi]

The samples currently have compile time checks, by being part of the solution, but not runtime validation.
Create a baseline test for each sample, to verify the output of their execution has not changed.

[shmoradims]

At the very lease we should make sure they samples are runnable. Full blown baseline might be too costly. We already have those for unit tests.

[codemzs]

@sfilipi As per our conversation at lunch, I'm assigning this to myself.

[sfilipi]

@codemzs i think this is complete? should we reference the PR and close it?

[najeeb-kazmi]

Closed in #3309. Created a stand alone app that will run all samples.