Add product "Signalbroker"

[AleksandarFilipov]

Title

Signalbroker, suggested in new category automotive

Description

Add Signalbroker Link: https://github.com/volvo-cars/signalbroker-server

Description:

Development tool to read and write CAN/LIN and other buses using gRPC which allows usage of preferred language.

Sample scenarios:

• 5Gcar where it's used to gather realtime data from Volvo vehicles.
  Video: 5GCar data collection Report: link to report 5.2
• W3C automotive specification more specific code location