Add ses doi and allow YK-ses.

[rpseng]

• Add DOI for the recent COSMO changes
• Allow to use an SES cavity with the YK method

[dmejiar]

@rpseng, it seems that the QA failures are happening because the last block of cosmo_h2cco2_opt.nw now misses a do_cosmo_ks to ensure the same calculation setup as the reference output file.

[rpseng]

@rpseng, it seems that the QA failures are happening because the last block of cosmo_h2cco2_opt.nw now misses a do_cosmo_ks to ensure the same calculation setup as the reference output file.

sorry about that, it should be fixed now.