Support authorization in seat service

[lukasmittag]

What needs to be done:

• Add argument to enforce/not use authorization
• extend https://github.com/eclipse/kuksa.val.services/blob/main/seat_service/src/bin/seat_service/seat_data_feeder.cc
• extend https://github.com/eclipse/kuksa.val.services/blob/main/seat_service/src/bin/seat_service/seat_position_subscriber.cc
• Generate the correct tokens for data feeder and seat position subscriber (all write, all read, generate tokens based on what paths you wnat to set)

[erikbosch]

Do we consider this one still relevant, if so i can "migrate" this issue.