Make all these members public

[konard]

IO/csharp/Platform.IO/TemporaryFiles.cs

Lines 13 to 17 in 2f45255

	private const string UserFilesListFileNamePrefix = ".used-temporary-files.txt";
	private static readonly object UsedFilesListLock = new();
	private static readonly string UsedFilesListFilename = Assembly.GetExecutingAssembly().Location + UserFilesListFileNamePrefix;
	[MethodImpl(MethodImplOptions.AggressiveInlining)]
	private static void AddToUsedFilesList(string filename)