[NRRPLT-8250] Added GDPR status set and get functions

- Implements the communication with the proxy

- GET function that receives whether the user has accepted the GPDR terms.
  On the proxy side checks the GDPR table in the storage

- SET function that sets the accepted status (only positive) when the user
  has accepted the GDPR terms. On the proxy side adds the status in the
  GDPR table