would otherwise prevent the use of dvalue for other models

use existing namespace abbreviation
removed repeated calculation of eps
added mechanical strain to vars where missing

set a fixed fracture normal vector or by default use
direction of 3rd principal stress vector as fracture normal

[PL/RM] Include swelling stress into total strain.

Closes #3062

See merge request ogs/ogs!3325

Only stress values have changed.

Needed for now present inversion of tangent stiffness tensor,
which is not possible (numerically) for 1e300 range numbers.

The results didn't change within the given tolerances.

Custom Python environments in container with virtualvenv

See merge request ogs/ogs!3385

[BHE] fixed the pipe wall thermal resistance and flow velocity norm for BHE 1U type

See merge request ogs/ogs!3384

Add iteration number output to file names.

Closes #3087

See merge request ogs/ogs!3383

Especially useful when all nonlinear iterations should
be output. See <output_iteration_results> tag.

Modified Cam clay model with benchmarks and documentation

See merge request ogs/ogs!3356

[CMake] Fixed include order of xdmfdiff-tool

See merge request ogs/ogs!3351

removed tests with boundary - new implementation does not support multiple mesh output
timestep is not specified - uses default - missing functionality in testrunner

Drop unused commented variable.

Replace std::result_of with std::invoke_result.

See merge request ogs/ogs!3382

std::result_of is deprecated as of c++17 and removed in c++20.

Update tetgen and fix CMake warnings

Closes #3085

See merge request ogs/ogs!3375