file naming when --test

[SilenNaihin]

Changes

When --test flag is used, these are the file names

reports/
-- 1_TestWriteFile
-- 1.1_TestWriteFile
-- 2_TestReadFile
-- 2.1_TestReadFile

Ran basic tests with mini-agi - still in progress. Also added "additional" field to json with model and "reached_termination_time" that is currently being inputted manually

PR Quality Checklist

• I have run the following commands against my code to ensure it passes our linters:

  black .
  isort .
  mypy .
  autoflake --remove-all-unused-imports --recursive --ignore-init-module-imports --ignore-pass-after-docstring --in-place agbenchmark