Add plastic computations to `material_utility`

[ezrayst]

• [x] add dplastic_strain computation
• [x] add pdstrain computation

[codecov[bot]]

Codecov Report

Merging #606 into develop will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff            @@
##           develop     #606   +/-   ##
========================================
  Coverage    96.86%   96.86%           
========================================
  Files          118      118           
  Lines        25042    25071   +29     
========================================
+ Hits         24256    24285   +29     
  Misses         786      786           

Impacted Files	Coverage Δ
include/materials/material_utility.tcc	100.00% <100.00%> (ø)
tests/materials/material_utility_test.cc	100.00% <100.00%> (ø)

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