Update livestock and dead tree models to have appropriate files on hugging face

[ethanwhite]

https://huggingface.co/weecology/deepforest-livestock and https://huggingface.co/weecology/cropmodel-deadtrees should have config files and be safetensors (not pl) for consistency and download tracking.

[bw4sz]

This is done for livestock model. I'm pretty sure this is the same process for the CropModel but I will check. I added notes in the developer guide on how to do this.

from deepforest.model import CropModel

m = CropModel.load_from_checkpoint("path to checkpoint")
m.push_to_hub("Weecology/nameofthemodel")

But I will confirm.