🚀[FEA]: Adding Physics-Informed Nonlinear Shallow Water Equations example.

[fresleven]

Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

Low (would be nice)

Please provide a clear description of problem you would like to solve.

I have created an example for a Physics-Informed Nonlinear Shallow Water Equations example.

https://github.com/NVIDIA/modulus/pull/338

Describe any alternatives you have considered

No response