Handle ~ in behaviour, association, rightsHolder

[peterdesmet]

~ values can be used in behaviour and association, but these are currently not parsed in the SQL.

• [x] How are these data exported by ESAS
• [x] Handle rightsHolder in event: 0a6c8fa
• [x] Handle association in occ (associatedTaxa): a4c444a
• [x] Handle association in emof: a4c444a
• [x] Handle behaviour in occ: a4c444a
• [x] Handle behaviour in emof: a4c444a

[peterdesmet]

The approach in https://github.com/inbo/esas2obis/commit/f176717db585562f1773d1c78551e3e92c3fe3b5 creates occurrence duplicate records. To be solved.

[peterdesmet]

Note, we expect not more than 3 values per field: https://github.com/inbo/esas2obis/issues/31

[peterdesmet]

Fixed in a4c444a and 0a6c8fa