This commit wrap the `settings_set_one` and `settings_delete` functions
in `bt_settings_store_one` and `bt_settings_delete`. By doing that the
Bluetooth settings can be managed in a single place.
This commit also introduce a new API to manage Bluetooth storage with
`bt_settings_store_*` and `bt_settings_delete_*` functions. Each
Bluetooth settings key have their own store and delete functions. Doing
that so custom behavior for key can be done if necessary.
This change is motivated by a need of keeping track of different
persistently stored settings inside the Bluetooth subsystem. This will
allow a better management of the settings that the Bluetooth subsystem
is responsible of.
Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
37cac7f2e2