Rename parameters and replace with Shared Parameters

[jscora]

Rename the following parameters:

• _random_state to seed for: DistToDistEvaluator, DistToPointEvaluator , Evaluator, PointToPointBinnedEvaluator, PointToPointEvaluator, and SingleEvaluator
• in ColumnMapper rename inplace to in_place
• rename limits to metric_integration_limits in DistToDistEvaluator and DistToPointEvaluator
• rename nbins to make it clear it’s not nzbins in PointToPointBinnedEvaluator and EqualCountClassifier
• in VarInfStackSummarizer rename niter to n_iter
• rename nsamples to n_samples in NaiveStackSummarizer, NaiveStackMaskedSummarizer , PointEstHistMaskedSummarizer, PointEstHistSummarizer , VarInfStackSummarizer
• in DistToDistEvaluator rename num_samples to n_samples
• rename point_estimate to point_estimate_key in EqualCountClassifier, PointEstHistMaskedSummarizer , PointEstHistSummarizer and UniformBinningClassifier
• in RowSelector rename start to start_row and stop to stop_row

Reload the following or change them to the relevant Shared Parameter:

• load id_name in as object_id_col Shared Parameter (this will change the default parameter at the moment) for EqualCountClassifier and UniformBinningClassifier
• load in chunk_size and hdf5_groupname as Shared Parameters in Evaluator
• load in nzbins as a Shared Parameter in NaiveStackMaskedSummarizer, NaiveStackSummarizer, OldEvaluator, PointEstHistMaskedSummarizer, PointEstHistSummarizer, VarInfStackSummarizer , RandomGaussEstimator
• in RandomGaussEstimator load in rand_zmax and rand_zmin as Shared Parameters zmax and zmin respectively
• load in zmax and zmin as Shared Parameters in: EqualCountClassifier, NaiveStackMaskedSummarizer, NaiveStackSummarizer, OldEvaluator, PointEstHistMaskedSummarizer, PointEstHistSummarizer, UniformBinningClassifier, and VarInfStackSummarizer

Update the docstring of output_mode to be more descriptive in RailStage (i.e. list options for the parameter, and what they do)