MultiClass Classification - feature contribution

Hello,

Do you plan on adding Feature Contribution to multi class classification problem?

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#### Document Details

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* ID: 72fdbc4e-fdca-27da-91d3-93fb0d397185
* Version Independent ID: ad7c3810-5cdf-5fc8-b856-7ce0a0f2e2f1
* Content: [FeatureContributionCalculatingEstimator Class (Microsoft.ML.Transforms)](https://docs.microsoft.com/en-us/dotnet/api/microsoft.ml.transforms.featurecontributioncalculatingestimator?view=ml-dotnet#feedback)
* Content Source: [dotnet/xml/Microsoft.ML.Transforms/FeatureContributionCalculatingEstimator.xml](https://github.com/dotnet/ml-api-docs/blob/live/dotnet/xml/Microsoft.ML.Transforms/FeatureContributionCalculatingEstimator.xml)
* Product: **dotnet-ml-api**
* GitHub Login: @natke
* Microsoft Alias: **nakersha**