I added some more benchmarks including packing with 200M small 64 byte messages (20Gb) and consumption of that queue. There is no slowdown because of mass delet

I added some more benchmarks including packing with 200M small 64 byte messages (20Gb) and consumption of that queue. There is no slowdown because of mass delete. https://github.com/bogdanovich/siberite/blob/master/docs/benchmarks.md#queue-packing-and-unpacking-64-byte-message-size https://github.com/bogdanovich/siberite/blob/master/docs/ben...