* babeld: send events via ubus
Send a notification via the ubus bus if we experience any changes in
neighbours, routes or xroutes.
The format looks like this:
{route,xroute,neighbour}.add: Object was added
{route,xroute,neighbour}.change: Object was changed
{route,xroute,neighbour}.flush: Object was flushed
If ubus_bindings is turned off, it will minimally effect performance,
since only an if-statement has to be evaluated.
If no subscriber is available, it will minimally change the performance,
since only an if-statmenet that checks for subscribers has to be
evaluated.
Signed-off-by: Nick Hainke <vincent@systemli.org>
519c1ff731