The library implements format which is conforming with std::format
which will be available with C++20. The library supports Python
style string formatting.

[newtonsolver] Use linearSolver.norm() if available

See merge request !2311

Kilian Weishaupt authored 4 years ago and Timo Koch committed 4 years ago

* fall back to assembler.residualNorm() otherwise

[gitignore] Ignore DS_Store files

See merge request !2309

Feature/1d3d coupling manager improvements

See merge request !2288

Coupling methox from Koch et al 2020 JCP (https://doi.org/10.1016/j.jcp.2020.109370)

[md][embedded][surface] Add choice between average operator and point evaluation and integrate over intersections instead of elements

If segments intersect the boundary of the 3d domain not all of the surface of the tubular inclusion
will couple with the 3d domain. The surface factor accounts for the reduction in surface area for
cylinder surfaces that are partly inside partly outside the 3d domain. This measure has proven
to slightly reduce the difference at boundaries between different coupling schemes.

[pointsource] Skip point sources which are not inside the domain

See merge request !2306

[bugfix][cc][scv] Replace optional by unique_ptr

Closes #930

See merge request !2307

Using optional lead to issues probably because the assignment operator were not
correcty implemented. However there is not need for optional here since the
member is in fact not optional but always there when the object is validly constructed.
We can simply use a unique_ptr to work around the fact that not all geometry
imeplementation are default-constructible and/or copy-assignable.

[fix][cc] Pass argument by const reference to avoid copies

See merge request !2305

[test][navierstokes][channel3d] Only use subgrid for 3d case

See merge request !2303

Feature/constantspatialparams1p

See merge request !2300

* fixes compiler warning 'array subscript 2 is outside array bounds'
  for pseudo 3d case

[examples] Fix endline character at the end of partitioned examples

See merge request !2302

[cleanup] Remove superfluous semicolons

See merge request !2298

Fix/wall distance check

Closes #941

See merge request !2289