zaickathon: LightGBM: Add soft labels#139

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AlbertoEAF wants to merge 9 commits intomasterfrom

af-soft-labels-ignore

Commits on Dec 14, 2022

make-lightgbm: Change to branch that can install git-lfs
AlbertoEAF
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Commits on Dec 15, 2022

lightgbm: Add SoftLabelParamParserUtil
AlbertoEAF
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lightgbm: Add soft label parameter
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lightgbm: Validate soft label in validateForFit
AlbertoEAF
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lightgbm: Train with soft label if it is passed
AlbertoEAF
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wip filter out soft label from features
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Commits on Dec 16, 2022

Attempt to impute soft=0 in train to have no splits and preserve schema
AlbertoEAF
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finish test
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Finish implementation
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