Adapt to changes in Scenarios data model

[lexvand]

See results of: nens/lizard-nxt#5443 and nens/lizard-nxt#5442 and description of backend changes

• [x] Adjust to changes in data model
  • [x] Drop username field in table
  • [x] Apply name changes for existing attributes in Details tab
  • [x] Change filtering/ordering where needed
  • [x] Show extra_metadata content to Details tab (need to discuss how to handle multiple levels in JSON dict; in first place only first order attributes): created its own ticket: https://github.com/nens/lizard-catalogue/issues/317
• [x] Add filtering on Project in left sidebar.

[hoanphungt]

@lexvand For the extra_metadata, I created a ticket for this issue as I don't know yet how to best display this information in the Details tab of the catalogue: https://github.com/nens/lizard-catalogue/issues/317