feat: adding output gif for newtonian simulator

[abanuelo]

Description

As a way to illustrate dynamic scenarios more concretely in Google Colab, added a feature to show dynamic scenarios via an output gif. See the output gif when running:

scenic examples/driving/badlyParkedCarPullingIn.scenic -S -m scenic.simulators.newtonian.driving_model --2d

https://github.com/BerkeleyLearnVerify/Scenic/assets/32311654/b7f640b8-af61-4a27-8754-f42ccff40cef

Also I am adding that it works with Colab:

https://github.com/BerkeleyLearnVerify/Scenic/assets/32311654/667fc2fb-097b-4d17-9166-5a1e54ae9d32

Issue Link

Checklist

• [X] I have tested the changes locally via pytest and/or other means
• [ ] I have added or updated relevant documentation
• [X] I have autoformatted the code with black and isort
• [ ] I have added test cases (if applicable)

Additional Notes

[codecov[bot]]

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Additional details and impacted files

[](https://app.codecov.io/gh/BerkeleyLearnVerify/Scenic/pull/273?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=BerkeleyLearnVerify) ```diff @@ Coverage Diff @@ ## main #273 +/- ## ======================================= Coverage ? 91.29% ======================================= Files ? 54 Lines ? 13520 Branches ? 0 ======================================= Hits ? 12343 Misses ? 1177 Partials ? 0 ``` | [Files](https://app.codecov.io/gh/BerkeleyLearnVerify/Scenic/pull/273?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=BerkeleyLearnVerify) | Coverage Δ | | |---|---|---| | [src/scenic/simulators/newtonian/simulator.py](https://app.codecov.io/gh/BerkeleyLearnVerify/Scenic/pull/273?src=pr&el=tree&filepath=src%2Fscenic%2Fsimulators%2Fnewtonian%2Fsimulator.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=BerkeleyLearnVerify#diff-c3JjL3NjZW5pYy9zaW11bGF0b3JzL25ld3Rvbmlhbi9zaW11bGF0b3IucHk=) | `89.94% <100.00%> (ø)` | |