Replicate List available hardware for models

Example cURL request: ```console curl -s \ -H "Authorization: Bearer $REPLICATE_API_TOKEN" \ https://api.replicate.com/v1/hardware ``` The response will be a JSON array of hardware objects: ```json [ {"name": "CPU", "sku": "cpu"}, {"name": "Nvidia T4 GPU", "sku": "gpu-t4"}, {"name": "Nvidia A40 GPU", "sku": "gpu-a40-small"}, {"name": "Nvidia A40 (Large) GPU", "sku": "gpu-a40-large"}, ] ```