Working with image data in ML.NET

- Update this [doc](https://learn.microsoft.com/dotnet/machine-learning/how-to-guides/load-data-ml-net) to show how to load image data from files as well as in-memory. Also show [IDataView attributes](https://learn.microsoft.com/en-us/dotnet/api/microsoft.ml.transforms.image.imagedataviewtype?view=ml-dotnet). Here are some [samples](https://github.com/dotnet/machinelearning/blob/main/docs/samples/Microsoft.ML.Samples/Dynamic/Trainers/MulticlassClassification/ImageClassification/ImageClassificationDefault.cs)
- Update this [doc](https://learn.microsoft.com/dotnet/machine-learning/how-to-guides/prepare-data-ml-net) to show common [data transforms](https://learn.microsoft.com/en-us/dotnet/machine-learning/how-to-guides/serve-model-web-api-ml-net#register-predictionenginepool-for-use-in-the-application) on images.
- Link to this doc from image section: https://learn.microsoft.com/en-us/dotnet/machine-learning/resources/transforms#image-transformations

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#### Document Details

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* ID: d52d4fbe-df9c-f410-85b4-786b139e94d3
* Version Independent ID: ce6265fd-1d0b-4d58-c60d-178d512486b4
* Content: [Load data from files and other sources - ML.NET](https://learn.microsoft.com/en-us/dotnet/machine-learning/how-to-guides/load-data-ml-net)
* Content Source: [docs/machine-learning/how-to-guides/load-data-ml-net.md](https://github.com/dotnet/docs/blob/main/docs/machine-learning/how-to-guides/load-data-ml-net.md)
* Service: **dotnet-ml**
* GitHub Login: @luisquintanilla
* Microsoft Alias: **luquinta**