Refactor DF perf test and add enumerator stack perf test
Refactor DF perf test and add enumerator stack perf test

StefanoRaggi/Lean,Jay-Jay-D/LeanSTP,kaffeebrauer/Lean,AlexCatarino/Lean,QuantConnect/Lean,kaffeebrauer/Lean,jameschch/Lean,JKarathiya/Lean,AnshulYADAV007/Lean,redmeros/Lean,redmeros/Lean,AnshulYADAV007/Lean,kaffeebrauer/Lean,kaffeebrauer/Lean,StefanoRaggi/Lean,AlexCatarino/Lean,redmeros/Lean,QuantConnect/Lean,AnshulYADAV007/Lean,Jay-Jay-D/LeanSTP,Jay-Jay-D/LeanSTP,jameschch/Lean,jameschch/Lean,JKarathiya/Lean,QuantConnect/Lean,AlexCatarino/Lean,JKarathiya/Lean,AnshulYADAV007/Lean,StefanoRaggi/Lean,AlexCatarino/Lean,jameschch/Lean,JKarathiya/Lean,kaffeebrauer/Lean,redmeros/Lean,Jay-Jay-D/LeanSTP,Jay-Jay-D/LeanSTP,QuantConnect/Lean,AnshulYADAV007/Lean,jameschch/Lean,StefanoRaggi/Lean,StefanoRaggi/Lean