The 'name' in process construction is also used after
the process construction and so it can not be moved
anyway. Taking it by const-ref avoids an extra copy
here (and silences a cppcheck warning).

The first transformation can be directly applied in the for-range-loop.

inclined elements.

Output of surface flux uses the standard mesh
output. Therefore it isn't necessary anymore to
pass the output_directory.

add a member of getNumberOfProcesses()

Rename a the method from getNumberOfComponents() to getNumberOfGlobalComponents()
in class LocalToGlobalIndexMap.

The fmt library happily accepts std::string without
any conversions.