boost::none -> std::nullopt
boost::make_optional -> std::make_optional
boost::optional<T>::get() -> std::optional<T>::value()

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

Fixes multiple copyright messages in the doxygen docu.

ag '\\file' -L --ignore=ThirdParty *Lib |xargs  sed -i 's/\(.*\)\\copyright/\1\\file\n\1\\copyright/'

Sometimes it happens, that a used parameter is defined
on a different mesh, then the mesh node/element ids do
not point to the right entities. This is difficult to
detect at runtime (you have to look into the results)
and leads to difficult to find errors.

This implements an additional function to check the
domains of definition, and adds an optional call to the
test when the parameter is found.

Just move and rename the namespace.

Calls corresponding to the dimension rotation function
from the coordinate system.

Clang format run on near-the-header lines.

Happy New Year

This potentially saves a second copy compared to using const
reference. See Effective Modern C++, Item 41.

This simlifies access to the values while maintaining simple interface.