Add overload for AddComponent method that takes an instance value

[duydang2311]

There are two overloads for AddComponent method, and they are not so convenient to use.

T AddComponent<T>(EntityId entity) where T : Component;
T AddComponent<T>(EntityId entity, params object[] args) where T : Component;

Using params object[] args destroys the whole advantages of having language server intelli-sense. There are no suggestions on what we can pass into the arguments. Besides, this using reflection to create instance is also a bit slower.

Instead, I'd suggest adding this overload:

T AddComponent<T>(EntityId entity, T value) where T : Component;

The method becomes much more shorter and nicer to use, considering the example below:

public class MyComponent : Component
{
    public long Id { get; set; }
    public string Name { get; set; }
}

AddComponent(entity, new Component() { Id = 1, Name = "abc" });