Fix out of bounds access errors.
Switch to linear interpolation to avoid sharp negative effects due to higher interpolation order used in the original code. These artifacts also appear in the original Fortran code.
Adjust reference values for co2 and n2_rot continuum in test file.
Fix out of bounds access errors. Switch to linear interpolation to avoid sharp negative effects due to higher interpolation order used in the original code. These artifacts also appear in the original Fortran code. Adjust reference values for co2 and n2_rot continuum in test file.