The commit adds four new operators for the P2PlusBubble element for
- diffusion and mass
- w/o blending and w/ AnnulusMap
- 2D

Missed to adapt changes for general case

Added terraneo folder

Change generate.py also when modifying CMake files

Update CI job name to hog

Missed that get() is blocking for some reason. We need it to exit on raised exceptions. Otherwise, the program exits without any feedback.

* Up until now, the components have not been properly passed to the forms.
* Trial and test functions have been passed in the wrong order.
* Added support for the component handling of divergence and gradient.

Generating cmake files only from generated .cpp and .hpp files. cmake files can now be generated without invoking the HFG first. Allows for adding some operators (e.g., by commenting out everything else in .toml) and then generating the cmake stuff afterward (which should happen automatically anyway).

Add an error to the parsing of precision and blending, to give the use a hint, what he actually wanted to do. And fix spacing.

Support for vector operators that are composed of scalar components, minor fixes in script, affine epsilon and full_stokes operators (both P2).

Fix bug, default from dict.get() is always called, even if key already exists in dict. So acces was changed to from get() to [] and raise exception was removed.