Add benchmarking project and remove empty array allocations #2284
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This PR adds a CsvHelper.Benchmarks project to hold onto benchmarks for CsvHelper. This also adds a BenchmarkEnumerateRecords benchmark that benchmarks iterating through a CSV using csv.GetRecords()
This PR updates ObjectCreator.GetArgTypes to not allocate an empty Type[] when the passed in object array is empty. This helps reduce allocations by ~14% in the new BenchmarkEnumerateRecords benchmark.
Before
After