2.5.0

• Added notify-/notify_one-methods to enable flush control for notifications.
• Restructured configuration to be a separate module (preparation to enable
  the usage of compiled configurations to speed-up startup)
• Added vSomeIP-Security: Socket authentication based on Linux-credentials
  together with further security checks using configurable policies.
• Fixed pending subscriptions had not sent out if subscribing application
  hosts the routing manager.
• Fixed crash in vsomeipd due to concurrent access when closing/shutdown socket.
• The service discovery now debounces newly offered service instances to avoid
  sending out the offers of the same service instance with a too high frequency.
  The default debounce time is set to 500ms. It can be changed via the new json
  file parameter service-discovery/offer_debounce_time.