* Fix unit in "md.smb.desfac" (desertification factor): 1/km -> 1/m.
* Add options to enable or disable parameterizations for "precipitation desertification" (Vizcaino et al., 2010) and "longwave correction" (Marty et al., 2002) using "md.smb.isdesertification" and "md.smb.isLWDcorret". * Add "SmbSemicIsDesertificationEnum" and "SmbSemicIsLWDcorrectEnum".
* Synchronize MATLAB and Python of "src/m/classes/SMBsemic.py" and "src/m/classes/SMBsemic.m".