Abstract BenchmarkSender and Operating System Determinator into base wrapper class

[WingZer0o]

There should be a base class that the other wrappers inherit from that does this logic via the constructor.

    public class ZSTDWrapper
    {
        private readonly OSPlatform _platform;
        private readonly BenchmarkSender _sender;

        public ZSTDWrapper()
        {
            this._platform = new OperatingSystemDeterminator().GetOperatingSystem();
            this._sender = new BenchmarkSender();
        }