Add sidecar scripts for fee estimation and stacks block delay detection

[AshtonStephens]

Description

This Draft PR contains two python scripts that handle two different needs.

1. fee-estimate.pyupdates the miner toml value satoshis_per_byte with the current estimate averaged between multiple fee estimation APIs.
2. stacks-block-delay-event-trigger.py runs a specified binary when the stacks block is created too long after a bitcoin block.

• Documentation of these can be found within the docstrings of the corresponding files.
• Reasonable defaults that require user defined values can be found under ./contrib/side-cars/config/ for both scripts/

Applicable issues

• fixes ongoing issues; will create an issue after this draft is loosely considered to be needed.

Additional info (benefits, drawbacks, caveats)

The user will need to install python and a few dependencies when they run for the first time, but that will be very easy to detect as the scripts will error out immediately with a helpful message.

This script is operating system agnostic assuming there is a reasonable python implementation on said system.

Checklist

• Test coverage for new or modified code paths
• Changelog is updated
• Required documentation changes (e.g., docs/rpc/openapi.yaml and rpc-endpoints.md for v2 endpoints, event-dispatcher.md for new events)
• New clarity functions have corresponding PR in clarity-benchmarking repo
• New integration test(s) added to bitcoin-tests.yml

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fc61021) 0.04% compared to head (34fe70a) 0.04%.
Report is 1 commits behind head on develop.

Additional details and impacted files

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  Hits           136      136           
  Misses      286682   286682           

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[diwakergupta]

we have much bigger problems to tackle y'all. let's just put both scripts somewhere (under /contrib perhaps) and move on? </end bike shed alert>

[AshtonStephens]

we have much bigger problems to tackle y'all. let's just put both scripts somewhere (under /contrib perhaps) and move on? </end bike shed alert>

Agreed, we can put this somewhere other than this repo at all to clear this up. Or @wileyj I can just send this to you in discord