Fix modified path to GFS data

Several bug fixes

- update/correct cmems product and dataset ids
- update variable lists
- fix date check for nrt/my products

adapt service and product names for CMEMS wave data

add new GFS parameters and change default value of date input to curr…

…ent date

31.01.2023 17:32 CET

31.01.2023 16:35 CET

31.01.2023 16:18 CET

31.01.2023 15:49 CET

31.01.2023 15:42 CET

16.01.2023 17:37 CET