I'd like to be able to evolve multiple files at once.
Multiple EVOLVE-BLOCK-START / END markers should be supported in each file.

The list of input files should be configurable in config.yml. It would be good to plan for extra per-file settings, e.g., additional prompts for a file. Example:

input_files:
  - name: "main.py"
  - name: "prompt.txt"
    prompt: "The prompt text that is loaded from main.py"

This would solve parts of the preconditions for #53.
A possible predecessor for this issue may be #46 .