Create Optimization Pass Wrapper for MLIR Reduce

Create a reduction pass that accepts an optimization pass as argument
and only replaces the golden module in the pipeline if the output of the
optimization pass is smaller than the input and still exhibits the
interesting behavior.

Add a -test-pass option to test individual passes in the MLIR Reduce
tool.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D84783