New Field in DB and Entry Mask: address supplement

[wellemut]

Problem

The fields

• street
• ZIP
• City
  are quite sensitive. If you add too many information, such as floor, entrance or a building-Letter, the address will not be found.
  But users don't have a field, where they could add any important information to be able to find the spot.

Solution

Add the new field address supplement (Adresszusatz)

• in the OpenfairDB
• and in the Frontend, below the street-field

This field is technically irrelevant for geolocation or anything else...