Add Implementation of Iterative Feedback Loop for Translation Improvement

[arthasking123]

Context

What is the purpose of this PR? Is it to

• add a new feature
• fix a bug
• update tests and/or documentation
• other (please add here)

Please link to any issues this PR addresses.
#17

Changelog

What are the changes made in this PR?
Add iteration inplementation for translation agent

Test plan

Please make sure to do each of the following if applicable to your PR. (If you're not sure about any one of these just ask and we will happily help.)

• run pre-commit hooks and linters (make sure you've first installed via pre-commit install)
• add unit tests for any new functionality
• update docstrings for any new or updated methods or classes
• run unit tests via pytest tests
• include relevant commands and any other artifacts in this summary (eval results, etc.)

[methanet]

@arthasking123 Thanks for the code, we'll review. Do you have any qualitative assessments or just examples of this feature performance in comparison to the original?