Added ManagedEntity and related methods in EntityManager; Added ScriptComponent to write game play logic in oop;
Added implicate conversion to Result<T, E> and RefResult<T, E>; Added new ScheduleChunkParallel in EntityQuery; Remove Ghost.SparseEntity from solution file. It's now completlty replaced by Ghost.Entities;
Added Playback to EntityCommandBuffer Added JobSchedular to world Added ISystem and SystemGroup Updated packages
