added Safe.DispatchEvent() a legacy equivalent for '?.Invoke()' added Safe.Dispose(IEnumerable) added PromiseExtensions.CancellationPoint to add a cancellation point to the chain of promises added IPromise<T> PromiseExtensions.Then<T>(this IPromise<T> that, Action<T> success) overloads added PromiseExtensions.Error() overloads to handle a error or(and) a cancellation

namespace Implab.Components {
    
    public enum ExecutionState {
        Undefined = 0,

        Created,

        Initializing,

        Ready,

        Starting,

        Running,

        Stopping,

        Failed,

        Disposed,

        Last = Disposed
    }
}