[mlir][Pass] Add a new PassNameCLParser specifically for parsing lists of pass names

This parser does not include the general `pass_pipeline` option, the pass pipeline entries, or the options of pass entries. This is useful for cases such as `print-ir-after` that just want the user to select specific pass types. This revision greatly reduces the amount of text in --help for several MLIR based tools.

Fixes PR#45495

Differential Revision: https://reviews.llvm.org/D92987