NelderMeadSweeper has unmet dependency to "ldrandpl" sweeper

[eerhardt]

The NelderMeadSweeper has a default FirstBatchSweeper set to ldrandpl. However, that component is not found in the dotnet/machinelearning repo.

machinelearning/src/Microsoft.ML.Sweeper/Algorithms/NelderMead.cs

Lines 27 to 28 in 5e08fa1

	[Argument(ArgumentType.LastOccurenceWins, HelpText = "The sweeper used to get the initial results.", ShortName = "init")]
	public SubComponent<ISweeper, SignatureSweeperFromParameterList> FirstBatchSweeper = new SubComponent<ISweeper, SignatureSweeperFromParameterList>("ldrandpl");

https://github.com/dotnet/machinelearning/search?q=ldrandpl&unscoped_q=ldrandpl -- only returns a single result - the reference from NelderMeadSweeper.

We should find another default for this sweeper, or move the ldrandpl component to dotnet/machinelearning.

/cc @TomFinley

[codemzs]

We don;t have sweepers in the repo as of today.