1. If the root is specified (FIXED-ROOT) by set type or set parent, change ie.mesh_type to MESH_ROOT before connect to router.
2. Release esp_mesh_recv_toDS when the root becomes non-root.
3. esp_mesh_set_type now supports MESH_IDLE and MESH_STA.
4. Fix ie.rc_rssi is not updated during scan and vote.
5. Fix ie.mesh_type do not match ie.layer caused by parent switch.
6. Fix during root switch, the original root doesn't disconnect from the router after it receives the switch request from the new voted root. (root switch happens by invoking esp_mesh_waive_root).
7. Fix the routing announce timer is not stopped immediately in a new root if the new root is transformed from non-root.
8. Choose the candidate with less ie.assoc when doing parent switch.
1. resend eb which are pending in g_ic.tx_buf due to channel switch.
2. add lock for mgmg/xon/bcast to protect send from user flush.
3. softap: add check if secondary offset is correct when start softap.
4. softap: in inactive timer handler, add check if child bss is removed to avoid removing it again.
5. disable A-MPDU for non-root.
6. fix reusing a freed eb.
7. fix when node becomes root, it does not record assoc value to nvs.
8. discard unnecessary forwarded group packets.
9. fix toDS state is not updated in time.
10. fix s_sta_cnx_times is not cleared when deinit causes root sends ADD annoucement.
11. root: increase beacon timeout time from 6 seconds to 15 seconds to delay initiation of reconnection.
12. add esp_mesh_get_tsf_time to return TSF time.
13. send the whole routing table multi-times.
14. clear candidate settings if not receive candidate beacon within 8 seconds.
