Use latest release of Delft-FIAT (backend)

[panosatha]

Kind of request

Changing existing functionality

Enhancement Description

So far FloodAdapt uses Delft-FIAT version v0.1.0rc2 as an executable.
If we want to use the latest one (v0.2.1) we need ti update the naming of the exposure columns to the new standard that follows a snake case format.

In order to avoid this issue in the future we should change the references in the code to the exposure columns, from direct use of column name to the use of an api style object that includes all the attribute naming for specific FIAT versions. Something like this:

class FIAT

This should be done after the event refactoring and FIAT adapter refactoring are merged.

Task list

TBD

Use case

No response

Additional Context

No response