[Pipeline] Have shell and batch steps be renameable

Our build process typically requires a series of batch calls into our build system. However, in looking at the steps of a build in pipeline, this results in a bunch of steps which are just "Windows Batch Script". This makes them difficult to differentiate from eachother, and provides a poor reporting experience overall.

Could we have an optional second argument to the batch step (and the shell step as well) to specify a name for the step, which would get added as a LabelAction?