Independent Fee Estimator

[saralab]

This is a placeholder for brainstorming and tracking the fee estimator feature.
Current known blockers:

• Updates to blockchain
• Precise clarity execution estimations

Considering other options to speed up the stream: a tool that scans the chain looking for contract deployments, does some static analysis to figure out function execution costs, saves those to a DB, and then performs tx estimations based on those considering tx inputs

@zone117x @rafaelcr