Add model card README

Add special_tokens_map.json from codellama/CodeLlama-7b-hf

Add tokenizer_config.json from codellama/CodeLlama-7b-hf

Add tokenizer.json from codellama/CodeLlama-7b-hf

Add tokie banner

Update tokenizer.tkz to v11 (with pad_token_id)

initial commit