Samples pointing at wrong resources

The following sample is pointing at `https://aka.ms/mlnet-resources/datasets/cifar10.zip` but looks this resources is not valid.

https://github.com/dotnet/machinelearning/blob/bca5736c23e093006bb6a5a3f85a789c4a1cdcf2/docs/samples/Microsoft.ML.Samples/Dynamic/Trainers/MulticlassClassification/ImageClassification/LearningRateSchedulingCifarResnetTransferLearning.cs

Looks we have code in different places trying to get the same resources from other sources https://github.com/dotnet/machinelearning/blob/bca5736c23e093006bb6a5a3f85a789c4a1cdcf2/docs/samples/Microsoft.ML.AutoML.Samples/Cifar10.cs#L13

Also there is other samples pointing at `https://github.com/onnx/models/tree/master/vision/classification/squeezenet` which exists but the zipped files there contains a different structured files than what the sample expect.
https://github.com/dotnet/machinelearning/blob/04dda55ab0902982b16309c8e151f13a53e9366d/docs/samples/Microsoft.ML.Samples/Dynamic/Transforms/ApplyONNXModelWithInMemoryImages.cs#L16
even the comment suggest there is Microsoft.ML.Onnx.TestModels nuget which not exist either. The correct structured file can be found in https://s3.amazonaws.com/download.onnx/models/opset_8/squeezenet.tar.gz