Add ZLib, Brotli compression options

[buyaa-n]

Approved API shape:

namespace System.IO.Compression
{
    public enum ZLibCompressionStrategy
    {
        Default = 0,
        Filtered = 1,
        HuffmanOnly = 2,
        RunLengthEncoding = 3,
        Fixed = 4,
    }
    public sealed class ZLibCompressionOptions
    {
        public int CompressionLevel { get; set; }
        public ZLibCompressionStrategy CompressionStrategy { get; set; }
    }
    public sealed class ZLibStream : Stream
    {
        // CompressionMode.Compress
        public ZLibStream(Stream stream, ZLibCompressionOptions compressionOptions, bool leaveOpen = false);
    }
    public partial class DeflateStream : Stream
    {
        public DeflateStream(Stream stream, ZLibCompressionOptions compressionOptions, bool leaveOpen = false);
    }
    public partial class GZipStream : Stream
    {
        public GZipStream(Stream stream, ZLibCompressionOptions compressionOptions, bool leaveOpen = false);
    }


    public sealed class BrotliCompressionOptions
    {
        public int Quality { get; set; }
    }
    public sealed partial class BrotliStream : System.IO.Stream
    {
        public BrotliStream(Stream stream, BrotliCompressionOptions compressionOptions, bool leaveOpen = false) { }
    }
}

Fixes #42820

[ghost]

Note regarding the new-api-needs-documentation label:

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[ghost]

Note regarding the new-api-needs-documentation label:

This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change.

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[stephentoub]

Has anyone requested being able to configure the memory level? I assume this is something we would consider adding as another property on the options in the future if it was needed?

[buyaa-n]

No real request, yes it can be added when needed

[carlossanlop]

Thanks for working on this. I left a few comments for you to consider.

[Mrgaton]

what about dictionary size