Add SubscriptionManager.RemoveConsolidator
Add SubscriptionManager.RemoveConsolidator

This allows algorithms to remove consolidators at run time. This is especially
relevant with universe selection where we can add/remove securities at run time
and potentially be creating indicators as well. When the security is removed
from the universe we'll also want to remove any consolidators/indicators that
have been wired up as well.

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