Update implementation to use compositional generator/parser pairs

[aryanjassal]

Specification

This is an old repo which was originally forked. This is the older implementation, which we need to change to support using compositional generators to archive the file trees into a single file, which can be streamed.

Additional context

Directly related to MatrixAI/Polykey#811

Tasks

1. Make sure the repo is non-ESM
2. Get inspiration from https://github.com/MatrixAI/js-encryptedfs
3. Use nested/compositional generators/parsers
4. Rely on provided implementation for fs to allow usage of efs
5. Add CI
6. Expose appropriate types/methods
7. The code shouldn't buffer anything - the buffer should be configurable. It should just be chunking stuff up.
8. The block size should also be configurable, however the default is 512 bytes per block.

[linear]

ENG-529

[aryanjassal]

Also need to investigate ixjs for observable-based syntax.

[CMCDragonkai]

Generally we do not use ixjs or rxjs in libraries. Only applications.

[CMCDragonkai]

Just look at the claims domain in PK to see how we do parsing and generation. It shouldn't be that complicated. The main thing is pushing into web streams though. So my thinking is that web streams is a PK domain thing, you'd want to expose compositional functions here.