BacktestingResultHandler speed improvement with many orders
BacktestingResultHandler speed improvement with many orders

- only the last 100 orders will be stored for intermediate backtesting results. The final result packet will always include all orders.

Jay-Jay-D/LeanSTP,JKarathiya/Lean,kaffeebrauer/Lean,kaffeebrauer/Lean,JKarathiya/Lean,jameschch/Lean,QuantConnect/Lean,AlexCatarino/Lean,QuantConnect/Lean,kaffeebrauer/Lean,Jay-Jay-D/LeanSTP,StefanoRaggi/Lean,QuantConnect/Lean,StefanoRaggi/Lean,jameschch/Lean,StefanoRaggi/Lean,Jay-Jay-D/LeanSTP,kaffeebrauer/Lean,AlexCatarino/Lean,Jay-Jay-D/LeanSTP,JKarathiya/Lean,jameschch/Lean,AlexCatarino/Lean,Jay-Jay-D/LeanSTP,kaffeebrauer/Lean,StefanoRaggi/Lean,QuantConnect/Lean,AlexCatarino/Lean,JKarathiya/Lean,jameschch/Lean,StefanoRaggi/Lean,jameschch/Lean