Support Custom API endpoint

[Sourabh964]

In the multi turn conversation using red teaming orchestrator, can we support Custom API endpoint as well similar to the target LLM so that we can test any chat bot hosted at custom API

[rdheekonda]

Yes, the framework supports that, but you'll need to add a target that implements the PromptChatTarget abstract class assuming you would like to set the system prompt under pyrit/prompt_target/prompt_chat_target. Once you've implemented the target, it can be used for red teaming bot as well as the target that you would like to probe.