fixing StaticLinearModel for Dirichlet boundary conditions and new test

[jmartfrut]

fixing StaticLinearModel for Dirichlet boundary conditions and new test

[github-actions]

Benchmark Results (Julia v1)

Time benchmarks

	main	8168716...	main / 8168716...
Constitutive models/Visco-elastic Ψ	0.0493 ± 0.029 ms	0.0491 ± 0.028 ms	1 ± 0.81
Constitutive models/Visco-elastic ∂Ψu	0.0654 ± 0.0077 ms	0.064 ± 0.0071 ms	1.02 ± 0.17
Constitutive models/Visco-elastic ∂Ψuu	0.115 ± 0.017 ms	0.114 ± 0.016 ms	1.01 ± 0.21
Simulations/StaticMechanicalDirichlet	0.143 ± 0.0076 s	0.143 ± 0.0077 s	0.995 ± 0.076
Simulations/StaticMechanicalNeumann	0.128 ± 0.012 s	0.128 ± 0.011 s	1 ± 0.13
Simulations/ViscoElastic	8.39 s	8.35 s	1.01
Tensor algebra/Cofactor	0.061 ± 0.01 μs	0.069 ± 0.01 μs	0.884 ± 0.19
Tensor algebra/Det(A)Inv(A')	0.14 ± 0.001 μs	0.14 ± 0.01 μs	1 ± 0.072
Tensor algebra/δδ_λ_2d	30 ± 0 ns	30 ± 0 ns	1 ± 0
Tensor algebra/δδ_μ_2d	30 ± 0 ns	30 ± 0 ns	1 ± 0
time_to_load	2.49 ± 0.036 s	2.49 ± 0.022 s	1 ± 0.017

Memory benchmarks

	main	8168716...	main / 8168716...
Constitutive models/Visco-elastic Ψ	1.25 k allocs: 0.0794 MB	1.25 k allocs: 0.0794 MB	1
Constitutive models/Visco-elastic ∂Ψu	1.37 k allocs: 0.0917 MB	1.37 k allocs: 0.0917 MB	1
Constitutive models/Visco-elastic ∂Ψuu	2.31 k allocs: 0.158 MB	2.31 k allocs: 0.158 MB	1
Simulations/StaticMechanicalDirichlet	1.59 M allocs: 0.114 GB	1.59 M allocs: 0.114 GB	1
Simulations/StaticMechanicalNeumann	1.41 M allocs: 0.0901 GB	1.41 M allocs: 0.0901 GB	1
Simulations/ViscoElastic	0.128 G allocs: 8.3 GB	0.128 G allocs: 8.3 GB	1
Tensor algebra/Cofactor	1 allocs: 0.0781 kB	1 allocs: 0.0781 kB	1
Tensor algebra/Det(A)Inv(A')	4 allocs: 0.25 kB	4 allocs: 0.25 kB	1
Tensor algebra/δδ_λ_2d	0 allocs: 0 B	0 allocs: 0 B
Tensor algebra/δδ_μ_2d	0 allocs: 0 B	0 allocs: 0 B
time_to_load	0.149 k allocs: 11.1 kB	0.159 k allocs: 11.6 kB	0.964