add HiDream I1

[TimPietrusky]

create a new docker image that contains everything to get HiDream I1 running in ComfyUI, see https://comfyanonymous.github.io/ComfyUI_examples/hidream

[TimPietruskyRunPod]

HiDream nodes (`HiDreamMultiClipLoader` etc.) are part of ComfyUI's built-in `nodes_hidream.py` module — confirmed today in the worker logs (line 151: `Trying to load custom node /comfyui/comfy_extras/nodes_hidream.py`). The model files themselves are not baked in (the hub image only ships FLUX.1-dev-fp8), so you'd need either:

• Custom image with HiDream model wgets in a derived Dockerfile, or
• Network volume containing the HiDream models at `models/diffusion_models/` and `models/text_encoders/` (the latter now in `extra_model_paths.yaml` via PR Add extra model paths for WAN #166)

Once the model files are available to the worker, the existing built-in HiDream nodes should handle the rest. Closing as the nodes are already there — please reopen if you hit something specific the built-in nodes don't cover.