Adds user agent header to WebClient in Download method
Adds user agent header to WebClient in Download method

Add a user agent header in case the requested URI contains a query.

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