New ACS processing for Bourdin et al. 2026 submission

Improved CDOM interpolation - Bourdin et al. (submitted)
New method to compute ag(lambda) without milliQ measurements - Bourdin et al. (submitted)
Three new scattering corrections for ACS - Bourdin et al. (submitted)
New attenuation correction for HyperBB from Xiaodong Zhang's group - (submitted
Fix several small bugs