Large refactor of entire codebase.

[ThaddeusTreloar]

Created a pipeline model for building comp/decomp pipelines

Added signing pipeline phase, no implementation

removed tokio scheduler as per tokio documentation recommendations

added rayon threadpool with std::thread::available_parallelism() threads as default.

organised cli utils

added boilerplate for logging support and cli log level options.

refactored error handling in line with thiserror patterns, enabling fine grained, detailed logging in future.

added prelude but not populated.

Added compression: Gzip Snappy

Added encryption: AES-GCM ChaChaPoly1305 XChaChaPoly1305

I will have to add some documentation at some stage as there is a lot to write down!

[SteveGremory]

Awesome! Thank you :) I'll review the changes and see what I understand then merge it.