* Fix CA1819 and CA1002 warnings
Changed the type of Languages statistic in regression tests from
Language[] to List<Language>. By doing that, the warning CA1819 was
removed but then the warning CA1002 was raised. However, this warning
was expected to be excluded from QuantConnect.Algorithm.CSharp.
* Improve implementation
* Simplify code
* Fix bugs
* Add Scheduled Universe Selection
- Adding `UniverseSettings.Schedule` that will allow users to
specify a custom selection schedule which is independent of the
underlying data frequency
- Adding unit and regression tests
* Add live trading schedule time shift