High Performance Delta

[rtyler]

This epic contains a number of performance related improvements, issues, and other things for me to dive deeper into.

[abhiaagarwal]

Something I found pretty useful in my quest to make delta-rs faster in production was to spawn operations on a dedicated CPU tokio runtime, similar to this datafusion example. Right now it requires a ton of plumbing to get it working with regards to object_store, maybe delta-rs can expose an easier API to provide a runtime for object_store operations? https://github.com/apache/datafusion/blob/main/datafusion-examples/examples/thread_pools.rs