Objective stress rates

[srosenbu]

We should start with an implementation of the Jaumann stress rate. This is basically impossible to do efficiently in Python. So, this would be a part of the Repository that would need to be written in Rust or C++. I have implementations for boththat we could copy in the repo.

• Include a function jaumann_rotate(del_grad_u, mandel_quantity, del_t = 1.) to rotate stresses (or strains, or anything else)
• Write a simple solver for a mechanics problem with updated lagrangian formulation for isoparametric elements (otherwise the mesh update does not work)

@saifr68 , what is your plan? When would you need large deormations?