Add the ability to track the provisioning bearer through an extra
parameter to link_open/close. Also introduce new public functions to
enable/disable specific provisioning bearers. This also means that one
now needs to explicitly enable provisioning bearers after calling
bt_mesh_init().
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
As the number of mesh APIs grows it becomes a bit cumbersome to have
everything in a single header file. Split the mesh.h header file into
multiple files in a new mesh subdirectory, and include the new headers
from the old one to retain backwards compatibility and simplicity for
apps (they only need to include <bluetooth/mesh.h>).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
