Extract onnx importing into it's own crate. about burn HOT 4 OPEN

I think onnx-parse is simple and clear to the point. onnx-unify could also work but I think it's not as clear.

from burn.

I think we can still keep the crate in the burn repo, since it's gonna be easier to update it, but we can give it a name without the burn prefix, something like onnx-loader

from burn.

This is a great idea. From the beginning I was intending Burn's ONNX IR to be its own crate. For now, however, we should keep it within the burn repo with a non-burn name. We are still making changing to the IR. In addition to missing ONNX node types, we need to add three big features: Subgraphs (#724), functions (#723) and scalar graph inputs (#1688).

Once we separate ONNX IR, we should put forward a design document that clearly states design goals that works for other projects as well.

Here are the names, I would like to suggest. It would be great if we somehow convey an idea that we are unifying ONNX representation from various OpSets into one.

1. onnx-unify (I prefer this).
2. onnx-north
3. onnx-irgen
4. onnx-nexus
5. onnx-simplify
6. onnx-unite
7. onnx-parse
8. onnx-clarity
9. onnx-unified
10. onnx-ir
11. onnx-easy
12. onnx-bridge
13. onnx-harmony
14. onnx-meridian
15. onnx-fusion

@skewballfox @laggui @louisfd @nathanielsimard what do you think about the names?

from burn.

Same as @laggui, but I also like onnx-ir!

from burn.