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Create a pybind preset (#10932)

### Summary

In this diff we create a `pybind` preset that is copied with
configurations from
[setup.py](https://github.com/pytorch/executorch/blob/7175ca420dc5a173f8635da976457bf6f17bbbc1/setup.py).
In upcoming diffs, we will completely gut setup.py and point directly to
this preset.

### Test plan

```
$ cmake --list-presets
Available configure presets:

  "macos-arm64"  - Build everything buildable on macOS arm64
  "pybind" - Build pybindings exported in the wheel
```
```
$ cmake --preset pybind && cmake --build cmake-out --parallel
```

cc @larryliu0820
J
jathu committed
502db6457862ef8ef736073ad8a36f41f60df86e
Parent: d0848ca
Committed by GitHub <noreply@github.com> on 5/16/2025, 7:42:49 PM