Overhaul streams

[james-pre]

Currently, ZenFS uses readable-stream. This has caused a number of issues, including type incompatibility, maintenance overhead for dependency management, a convoluted streams API, and more.

Additionally, streams support and implementation is poor within ZenFS.

This meta-issue tracks a complete overhaul of ZenFS streams, including a full rewrite of readable-stream into @zenfs/streams. This overhaul will also include significant improvements of the internal handling of streams.

Also, this overhaul may include some things from other ZenFS packages:

• Streaming zip data archives#3