Improvements to model logging/printing for easier reading
Removed some unused imports and legacy code
Documentation updates
Moved 'template' configs (e.g. for SPIDER, AGNI) into their own folder
Some groundwork towards working on disentangling COUPLER_options and output variables. Atmosphere model calls do not directly modify COUPLER_options anymore
Closes #45
Updated example folder
Removed stellar spectra, since these are now obtained from the FWL_DATA folder
After this PR, next steps should be to disentangle the input/output variables.
After this PR, next steps should be to disentangle the input/output variables.