* Fix symbol changed events emission time
Ensure the symbol changed events are emitted after the securities are processes by the main loop in the AlgorithmManager. This way the algorithm has access to the new symbol security since it would be added by the securities processing logic.
Also, allow all securities to be properly updated, including prices and cash, before emitting the event, so that the any logic (like placing orders) done by the algorithm on the handler has the correct data.
* Minor fix
* Minor change
* Minor change
Jhonathan Abreu
c5c56bf98e