new querite api

queriteusage.cs

    public class FileSystem
    {
        public void Evaluate(IFolder folder)
        {
            int? count;
            TimeSpan? howLong;

            var firstTen = Query(folder)
                .Statistics(x => count = x.Count)
                .Statistics(x => howLong = x.ExecutionSpan)
                .Customize(x => x.AsOf(15.MinutesFromNow()))
                .Customize(x => x.CachedFor(10.Minutes()))
                .Execute(new LongNameFiles { Skip = 0, Take = 10, Length = 15 });
        }

        /// <remarks>should use ioc, method only shown to demonstrate the point</remarks>
        private IQuery<TSource> Query<TSource>(TSource source)
        {
            return new CacheableQuery<TSource>(
                actualQuery: new Query<TSource>(source), 
                cacheStoreFactory: new InMemoryCacheFactory());
        }
    }