Resolve "Build fails on Euler cluster"

Closes #80

See merge request mechanics-and-materials/ae108!73

- fixes error on Euler cluster

- fixes error with googletest v1.8.1

Resolve "MaterialModelBase uses (potentially) complex Energy and Time"

Closes #84

See merge request mechanics-and-materials/ae108!72

Resolve "Add `DynamicSolver` example"

Closes #82

See merge request mechanics-and-materials/ae108!70

Resolve "CI uses "dev" image"

Closes #83

See merge request mechanics-and-materials/ae108!71

- fixes error in CI

Resolve "Add function to refine beam meshes"

Closes #73

See merge request mechanics-and-materials/ae108!63

- fixes error in CI

Resolve "Add support of complex scalar type"

Closes #34

See merge request mechanics-and-materials/ae108!61

- asTransposedMatrix creates the non-Hermitian transpose
- asHermitianTransposedMatrix creates the Hermitian transpose

Resolve "Function `boundaryConditionsToTransform` is slow"

Closes #78

See merge request mechanics-and-materials/ae108!69

- improves performance
- allocate space for values in the off-diagonal block

Resolve "Simplify CMake commands in README"

Closes #77

See merge request mechanics-and-materials/ae108!68

- use CMake to build

- use real part of coordinates
- export both real part and imaginary part of fields

Merge remote-tracking branch 'origin/34-add-support-of-complex-scalar-type' into 73-add-function-to-refine-beam-meshes

This reverts commit 586e1539.

Merge branch '34-add-support-of-complex-scalar-type' of https://gitlab.ethz.ch/mechanics-and-materials/ae108 into 34-add-support-of-complex-scalar-type

- computing generalized eigenvalues is possible for transformed matrices