Implementation of deep coaxial BHE process with types of CXA and CXC

The result should be compared to npos.
As suggested by the cppcheck, stlIfStrFind.

RichardsMechanics anisotropic permeability

The original tensor is rotated by approximately 30 degree.

Reuse the material property.
Drop <intrinsic_permeability> tag from prj files.

In case of multiple values given under the <value>
tag, the error was not conclusive. Parsing the value
as vector, allows checking of the size now.

Shear strains epsilon_xz and epsilon_yz added as secondary variables.

Migrate LFS from GitLab to Artifactory

The timeout is maximum runtime for one benchmark. Was 15 minutes before.

Introducing ogs-container-generator

Current staggered scheme implementation proved to be
much better than the monolithic implementation, which
fails to predict failure in a shear test.