Also attempted to fix material changing and updating the rendered block

- Fixed the game enter API
- Fixed ToggleTimeMode() placing the player underground by using the full switch animation
- Fixed the menu enter/exit events only firing once due to the game keeping the menu loaded
- Moved everything from AppEngine to GameMenuEngine for consistency
- Reimplemented the Block.Static property, it should actually work again too
- Made the block property test only use blocks placed during the previous test, improved error handling and temporarily disabled testing the Material and the Flipped properties as they cause the game to crash

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

- Added support for seat enter and exit events and a test for them
- Added support for entering and exiting seat from code
- Changed the Id property of ECS objects to non-abstract, requiring it in the constructor, so that the Player class can inherit EcsObjectBase
- Added a weird constructor to EcsObjectBase that allows running code to determine the object Id
- Added interface for engines that receive entity functions
- Exposed the entity submission scheduler and removed it from FullGameFields because it moved from there
- Made the Game.Enter event only fire after the first entity submission so the game is fully initialized and the local player exists
- Added all seat groups to the dictionary

- 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)

Added check for time mode toggle to avoid crashing the game
Added support for having the ref folder outside the solution in gen_csproj.py
Removed BlockIdentifiers class
Added check for invalid player ID when placing blocks
Resolved compilation errors

Except those that actually refer to the game's code

Added some TODOs as well

Removed BlockIdentifiers.OWNED_BLOCKS as the original got replaced with an array
Added the correct group for each supported functional block
Removed EntityFactory property from IEntitySerializer as it is provided on deserialization