feat(GenerationContext.py): add setup_dir method to create a directory for output files with a timestamp
feat(GenerationContext.py): call setup_dir method before generating script and synthesizing audio to ensure output directory exists
feat(prompts/fix_captions.yaml): add a new prompt file to provide instructions for fixing captions
fix(BaseTTSEngine.py): add force_duration method to adjust audio clip duration if it exceeds a specified duration
feat(CoquiTTSEngine.py): add options for forcing duration and specifying duration in the UI
feat(utils/prompting.py): add get_prompt function to load prompt files from a specified location
fix(gradio_ui.py): set equal_height=True for engine_rows to ensure consistent height for engine options
feat(OpenaiLLMEngine.py): add orjson library for JSON serialization and deserialization, and implement the generate method to make API call to OpenAI chat completions endpoint
feat(__init__.py): import OpenaiLLMEngine in LLMEngine package
feat(BaseScriptEngine.py): add time_script method to the BaseScriptEngine class
feat(CustomScriptEngine.py): add new file CustomScriptEngine.py to handle custom script generation, implement generate method to return the provided script, and add get_options method to provide a textbox for the prompt input
feat(__init__.py): import CustomScriptEngine in ScriptEngine package
feat(__init__.py): import LLMEngine package and add OpenaiLLMEngine to the ENGINES dictionary
refactor(gradio_ui.py): change equal_height attribute of Row to False to allow different heights for input blocks
