Fix models with "llama-3" in the name and update Hermes adapter

[teknium1]

Why are these changes needed?

In model_adapters, llama-3 supercedes Hermes-2-Pro-Llama-3 and Hermes-2-Theta-Llama-3 when detecting it's format, so I changed it to have meta-llama as its match string to make sure it doesn't snag many other models, considering llama-3 is required by their license to be in the model name.

Also updated Hermes format