* QA eval dataset as argument, with hotpot and 2wikimultihop as options. Json schema validation for datasets.
* Load dataset file by filename, outsource utilities
* restructure metric selection
* Add comprehensiveness, diversity and empowerment metrics
* add promptfoo as an option
* refactor RAG solution in eval;2C
* LLM as a judge metrics implemented in a uniform way
* Use requests.get instead of wget
* clean up promptfoo config template
* minor fixes
* get promptfoo path instead of hardcoding
* minor fixes
* Add LLM as a judge prompts
* Support 4 different rag options in eval
* Minor refactor and logger usage
