转换 Task<IAsyncEnumerable<T>> 为 IAsyncEnumerable<T>

这么做还是有一些意义的，避免重复处理Task<IAsyncEnumerable>实在是有些复杂，如果代码还要处理IAsyncEnumerable的话尤为如此，将二者统一还是有一定意义的

        #region AsAsyncEnumerable
        public static async IAsyncEnumerable<T> AsAsyncEnumerable<T>(this System.Threading.Tasks.ValueTask<IAsyncEnumerable<T>> asyncEnumerable)
        {
            await foreach (var one in await asyncEnumerable.ConfigureAwait(false))
            {
                yield return one;
            }
        }
        public static async IAsyncEnumerable<T> AsAsyncEnumerable<T>(this System.Threading.Tasks.ValueTask<IEnumerable<T>> asyncEnumerable)
        {
            foreach (var one in await asyncEnumerable.ConfigureAwait(false))
            {
                yield return one;
            }
        }
        public static async IAsyncEnumerable<T> AsAsyncEnumerable<T>(this System.Threading.Tasks.Task<IEnumerable<T>> asyncEnumerable)
        {
            foreach (var one in await asyncEnumerable.ConfigureAwait(false))
            {
                yield return one;
            }
        }
        public static async IAsyncEnumerable<T> AsAsyncEnumerable<T>(this System.Threading.Tasks.Task<IAsyncEnumerable<T>> asyncEnumerable)
        {
            await foreach(var one in await asyncEnumerable.ConfigureAwait(false))
            {
                yield return one;
            }
        }
        #endregion