Added module for the Finnish bank Osuuspankki. The module supports CapBank and CapDocument, since in Finland banks receive electronic invoices from various companies (e.g., utility companies, insurance companies) and customers pay them through the bank's website. Additionally, the bank provides authentication to a web service that serves salary slips. The Tietobix module is used by Osuuspankki to access the salary slips using CapDocument. Tietobix is a separate module since it could be accessed using other Finnish banks for authentication, although the module is not functional on its own.