mesh: emit pb-adv link open failed if device does not responds

mesh: annotate device uuid is not copied in pb_adv_create_link

mesh: ignore pb link close if link is already closed

mesh: trigger mesh upper transport run if outgoing pdus could not be processed due to missing network pdus

mesh: upper transport skips over pdus for which an segmented outgoing pdu is already active

mesh:mesh publication uses mesh_upper_transport_request_to_send

mesh: implement mesh_upper_transport_request_to_send

mesh: add mesh_upper_transport_schedule_send_requests and mesh_upper_transport_send_requests_pending

mesh: wait until message builder is ready before delivering access pdu to access layer

mesh: add mesh_network_notify_on_freed_pdu

mesh: implement mesh_upper_transport_message_reserve

mesh: add API docs for mesh_upper_transport API

mesh: rework setup and send of upper transport control pdus

mesh: replace mesh_upper_transport_setup_access_pdu with message builder

mesh: add missing parentheses, track upper transport pdu len

mesh: remove dead code

mesh: remove transmic_len from mesh_access_pdu_t

mesh: replace ack and incomplete timer active uint8_t with bits in mesh_segmented->flags

mesh: use seq & 0x1fff instead of storing seq_zero explicitly in mesh_segmented_pdu

mesh: use MESH_TRANSPORT_FLAG_TRANSMIC_64 to store transmic_len in mesh_upper_transport_pdu

mesh: use MESH_TRANSPORT_FLAG_TRANSMIC_64 to store transmic_len in mesh_segmented_pdu

mesh: set trasnmic_len and aid from first segment

mesh: limit number of outgoing segmented messages in parallel

mesh: park segmented messages that wait for ack in list, allow sending of multiple segmented messages in parallel

mesh: pass pointer to segmented message in outgoing timer related functions