Update IEnumerable vs ICollection vs IList vs List sample to .NET 10 - #2116
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Retarget both projects from net7.0 to net10.0 and add a deferred-execution demonstration showing that a LINQ query re-runs on every enumeration while a materialised ICollection<T> just reads a stored count.
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Retargets both projects in
collections-csharp/IEnumerableVsICollectionVsIListVsListfromnet7.0tonet10.0and adds a deferred-execution demonstration to the sample.DeferredExecutionDemo.ShowDeferredVsMaterialised()shows that a LINQ query re-runs the filter on every enumeration, while a materialisedICollection<T>reads a storedCount.Program.Main()alongside the existing interface demos.Verified locally on .NET 10.0.10: build clean, 7/7 NUnit tests passing.