Keep track of active profile in default-routes so that we can restore
the prefered routes later.
Keep track of all active routes in an array. There can be more than
one active route per direction.
New routes will get their volume restored. Route changes will be saved.
Save settings as jason and use a small json compatible tokenizer to
load settings instead of our own less flexible format.
Save settings with a prefix and filter out entries without prefix
Listen for changes in restore.stream metadata and update properties.
Load the settings into the restore list, when we see a device and it's
in the restore list, restore the profile and remove from restore list.
All updates to profiles go into the save list and it is then saved.
