FTlandingDate needed

[nmprista]

Estimates are frequently calculated based on landing date (e.g., by landing quarter, landing month).

In e.g., H1, H2 or H3 there is no possibility of declaring that date, only arrival date (which may fall on a different quarter).

We need an FTlandingDate (e.g., defined as the date of most landings) to account for such cases

[HenrikK-N]

'Dominant landing date' should be in the Trip table, (dominant; because there could be more landing dates). The field should be added as an Optional field, after the arrival time (field 16). Having the landing data on the Sample table as 'Landing date' could be an option, but the CL data differs up to 4 days, and it is not always possible to distinguish landing data from the different fishing operations. Therefore it is not good to have the landing data on the Sample table. This should be implemented in the next possible update version.