Extract contacts from Cobra .csv files.

Takes two seperate .csv files, one with techie contacts and one with all
contacts. First extracts the institution name for each Ethereum address
from all contracts (Addresses must be in Bemerkung field of Haupt
address). Then formats the contacts and checks if there are Techie
contacts. If there are, adds all of them to the contacts. If none, adds
all contacts at consortium contacts of the institute.