# Description

This pull request refactors the core functionality of
generate_dataset.py into separate helper modules. The goal is to make
the associated Jupyter notebook leaner.

* Move functions in generate_dataset to
isaaclab_mimic/datagen/generation.py
* Add utils.py for utility function for the notebook
* Add dependency for ipywidgets

## Type of change

- New feature (non-breaking change which adds functionality)

## Checklist

- [ x] I have run the [`pre-commit` checks](https://pre-commit.com/)
with `./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

<!--
As you go through the checklist above, you can mark something as done by
putting an x character in it

For example,
- [x] I have done this task
- [ ] I have not done this task
-->

---------
Signed-off-by: Kelly Guo <kellyguo123@hotmail.com>
Co-authored-by: Jean-Francois-Lafleche <57650687+Jean-Francois-Lafleche@users.noreply.github.com>
Co-authored-by: Peter Du <peterd@nvidia.com>
Co-authored-by: Kelly Guo <kellyguo123@hotmail.com>
Co-authored-by: Kelly Guo <kellyg@nvidia.com>