Merge branch 'master' into zoom_metis_full

.gitignore

AUTHORS

CITATION.cff

CONTRIBUTING.md

COPYING.LESSER

INSTALL.swift

argparse/argparse.c

configure.ac

doc/RTD/source/AnalysisTools/index.rst

doc/RTD/source/ExternalPotentials/index.rst

doc/RTD/source/ParameterFiles/lossy_filters.rst

doc/RTD/source/ParameterFiles/parameter_description.rst

doc/RTD/source/RadiativeTransfer/GEAR_RT.rst

doc/RTD/source/RadiativeTransfer/RTTaskDependencies.webp

...e/RadiativeTransfer/RTTaskDependenciesFull-simplified.png

doc/RTD/source/RadiativeTransfer/RTWorkflow.png

doc/RTD/source/RadiativeTransfer/RT_notes_for_developers.rst

doc/RTD/source/RadiativeTransfer/RT_subcycling.rst

doc/RTD/source/RadiativeTransfer/additional_tools.rst

doc/RTD/source/RadiativeTransfer/index.rst