Use Vector with locally relevant dofs in compute_stress

[masterleinad]

Copying the parallel layout from displacement, we are missing some locally relevant DoFs we are accessing in compute_stress.

[Rombur]

An error occurred in line <1479> of file </scratch/source/dealii/include/deal.II/lac/la_parallel_vector.templates.h> in function
    dealii::LinearAlgebra::distributed::Vector<Number, MemorySpace>& dealii::LinearAlgebra::distributed::Vector<Number, MemorySpace>::operator-=(const dealii::LinearAlgebra::VectorSpaceVector<Number>&) [with Number = double; MemorySpace = dealii::MemorySpace::Host]
The violated condition was: 
    ::dealii::deal_II_exceptions::internals::compare_for_equality(locally_owned_size(), v.locally_owned_size())
Additional information: 
    Two sizes or dimensions were supposed to be equal, but aren't. They
    are 336 and 0.

Stacktrace:
-----------
#0  /opt/dealii/lib/libdeal_II.g.so.9.5.1: dealii::LinearAlgebra::distributed::Vector<double, dealii::MemorySpace::Host>::operator-=(dealii::LinearAlgebra::VectorSpaceVector<double> const&)
#1  /var/jenkins/workspace/adamantine_PR-303/build/bin/test_mechanical_physics: adamantine::MechanicalPhysics<3, 4, adamantine::SolidLiquidPowder, dealii::MemorySpace::Host>::solve()
#2  /var/jenkins/workspace/adamantine_PR-303/build/bin/test_mechanical_physics: elastostatic::test_method()

[masterleinad]

Retest this please.

[Rombur]

You can remove the TODO. This PR fixes it.

[masterleinad]

Retest this please.