Replace the old dump infrastructure (#7572)

Replace the old dump infrastructure (#7572)

This deletes the old dumping infrastructure, which due to changes in our usage of SolverEngine does not print valid benchmarks.

This eliminates the concept of a "NodeManagerListener" which has been problematic to maintain.

This PR reimplements the --dump=assertions:pre-X and --dump=assertions:post-X as -t assertions::pre-X and -t assertions::post-X. This is done in a self contained utility method in ProcessAssertions using smt::PrintBenchmark and does not require keeping the rest of the code in sync.

The other dumping tags are deleted for now, and will be reimplemented as needed.