Neither of them work actually
Added some delay between tests

Save game details were changed, they may not work properly
Game mode change event no longer sends game data, needs fixing

- Added a wrapper class that handles the individual wrapping of event handlers to individually handle exceptions - now it tracks the wrapped event handlers so it can unregister them properly
- Fixed an exception that happened when two ECS objects were created with the same EGID
- Added support for returning an existing ECS object if it exists instead of always creating a new one
- Added a parameter to the entity query extension methods to override the group of the ECS object (could be used for the player properties)

It broke everything using the type

Added extension methods to query data from ECS objects
Added base class for ECS objects
Added support for representing in-construction ECS objects with an OptionalRef<T>