Input radiometric unit of spectral homogenization is now checked. Linear...

Input radiometric unit of spectral homogenization is now checked. Linear interpolation is used if its not BOA_Ref.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
2 jobs for bugfix/fix_noAC_spectral_homgenization in 17 minutes and 7 seconds (queued for 3 seconds)