benchmark report: show total score + move average columns etc to the front of the table
benchmark report: Clear separation between average and the problem columns + add averageTimeMillisSpend
benchmark report: show if it's an aggregation
benchmark report: use anchorId when appropriate
Improve escapeHtmlId with unicode escape numbers and space and ()
benchmark aggregator: reuse benchmarkConfig for the aggregator (benchmarkDir and reportConfig)
decent error message
Refactor CommonBenchmarkApp to support "--aggregator" out of the box for all examples
docs for report aggregator