Added rudimentary ollama support

[TORlN]

• ~~Added a switch statement in cli.py to handle different providers~~ change no longer needed
• added ollama support in lm.py. ~~Make sure to change the aicodebot.yaml file to "ollama_local: {local llm}" instead of "openai_api_key: {api key}" and manually change CURRENT_PROVIDER = OLLAMA~~ no longer needed
• ~~Changed get_api_key function name to get_key~~ change reverted
• ~~added CURRENT_PROVIDER variable, initially set by DEFAULT_PROVIDER~~ change reverted
• ~~added match statement to dynamically organize which model is being used in the future~~ no longer needed
• fixed key error in output
• removed hugging face support
• updated README