feat: Implement a contextual version of the StoVSP#70

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mainJuliaDecisionFocusedLearning/DecisionFocusedLearningBenchmarks.jl:mainfrom

contextual-vspJuliaDecisionFocusedLearning/DecisionFocusedLearningBenchmarks.jl:contextual-vspCopy head branch name to clipboard