Error Handling Redesign

[sergiimk]

Problems:

• Error bubble up problem
  • https://github.com/mcmah309/error_set
  • https://www.reddit.com/r/rust/comments/1e7qqvp/error_sets_and_logging_a_powerful_combination/
  • https://www.reddit.com/r/rust/comments/1cp8xtx/error_handling_for_large_rust_projects/
• Error context info
  • Consider color-eyre: https://fasterthanli.me/articles/surviving-rust-async-interfaces
• Unifying representation and logging of API errors

[sergiimk]

thiserror_ext

I think this is exactly what we need to solve two problems:

• AsReport - would allow us to pretty-format all error uniformly for logging
  • we currently have a good error formatter in kamu-cli
  • but all APIs invent their own ways to log critical errors (they are inconsistent and don't work well with error chains)
• Construct macro - we currently do the same manually