FEAT: GPTFuzzer Orchestrator

[gseetha04]

Description

Adding a new Orchestrator based on GPTFuzzer paper which uses MCTS algorithm to select a jailbreak template, apply prompt converter and send it to the target to get a response.

Implemented the MCTS algorithm for the seed selection

[gseetha04]

@microsoft-github-policy-service agree company="Centific"

[romanlutz]

This could be a lot. Maybe a batch size would help. With more than a few you'll just overwhelm the scoring target leading to failures. For batching we usually use a method on the normalizer, but the scorer doesn't have that yet if I remember correctly. Perhaps the batching logic itself should move to the scorer to have that batch method available and you can just call it from here and not worry about batching in an orchestrator. Cc @rlundeen2

[romanlutz]

Note that #331 is adding batch scoring which we can use here! Hooray!

Let's just leave this comment open until #331 is merged.

[romanlutz]

Mostly tiny things but wanted to be thorough since we're getting close.

[romanlutz]

Something is off here.
As soon as you're outside the with-block the context is gone, so these mock objects are gone.
They should be nested I think (?)

Plus, you're defining a side_effect in the last lines and not using it. Where are we actually calling execute_fuzzer?