WindowRight: IList<> implementation

[viceroypenguin]

This PR adds an IList<> implementation of WindowRight, which reduces memory usage and improves performance.

Fixes #421

// * Summary *

BenchmarkDotNet=v0.13.5, OS=Windows 11 (10.0.22621.1702/22H2/2022Update/SunValley2)
12th Gen Intel Core i7-12700H, 1 CPU, 20 logical and 14 physical cores
.NET SDK=8.0.100-preview.4.23260.5
  [Host] : .NET 7.0.5 (7.0.523.17405), X64 RyuJIT AVX2

Method	source1	N	Mean	Error	StdDev	Gen0	Gen1	Allocated
WindowRightCount	Syste(...)nt32] [47]	10000	9.368 ns	0.0775 ns	0.0725 ns	0.0025	0.0000	32 B
WindowRightCount	Syste(...)nt32] [62]	10000	187,226.046 ns	1,752.2183 ns	1,463.1816 ns	82.7637	0.2441	1039456 B
WindowRightCopyTo	Syste(...)nt32] [47]	10000	202,230.651 ns	3,443.8864 ns	2,875.8011 ns	89.1113	51.5137	1119392 B
WindowRightCopyTo	Syste(...)nt32] [62]	10000	272,945.487 ns	4,690.4483 ns	5,213.4208 ns	99.6094	59.0820	1251192 B
WindowRightElementAt	Syste(...)nt32] [47]	10000	43.971 ns	0.3483 ns	0.2908 ns	0.0108	0.0001	136 B
WindowRightElementAt	Syste(...)nt32] [62]	10000	150,312.289 ns	1,117.5530 ns	990.6816 ns	66.1621	0.2441	831664 B

Code

#load "BenchmarkDotNet"

void Main()
{
	RunBenchmark();
}

public IEnumerable<object[]> EnumerableArguments()
{
	foreach (var i in new[] { 10_000, })
	{
		yield return new object[]
		{
			Enumerable.Range(1, i).Where(_ => true),
			i,
		};
		yield return new object[]
		{
			Enumerable.Range(1, i).ToList(),
			i,
		};
	}
}

[Benchmark]
[ArgumentsSource(nameof(EnumerableArguments))]
public void WindowRightCount(IEnumerable<int> source1, int N)
{
	_ = source1.WindowRight(20).Count();
}

[Benchmark]
[ArgumentsSource(nameof(EnumerableArguments))]
public void WindowRightCopyTo(IEnumerable<int> source1, int N)
{
	_ = source1.WindowRight(20).ToArray();
}

[Benchmark]
[ArgumentsSource(nameof(EnumerableArguments))]
public void WindowRightElementAt(IEnumerable<int> source1, int N)
{
	_ = source1.WindowRight(20).ElementAt(8_000);
}

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.06 🎉

Comparison is base (5de97e2) 88.13% compared to head (ed9b9bd) 88.19%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #429      +/-   ##
==========================================
+ Coverage   88.13%   88.19%   +0.06%     
==========================================
  Files         242      242              
  Lines        7568     7608      +40     
  Branches     1739     1746       +7     
==========================================
+ Hits         6670     6710      +40     
  Misses        460      460              
  Partials      438      438              

Impacted Files	Coverage Δ
Source/SuperLinq/WindowRight.cs	100.00% <100.00%> (ø)

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