On-Off control

The onoff feature is controlled through the mesh-model-onoff.

uart:~$ mesh models msg send 1 0x1001 0004 0x8202 0000
cmd_end
[00:21:46.025,329] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00
[00:21:46.025,390] <inf> model: from 0x0004 dst 0x0002 rssi -20 element 1, model 0x1001 op 0x8204 len 1: 00
[00:21:46.045,379] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00
[00:21:46.045,410] <inf> model: from 0x0004 dst 0xc000 rssi -20 element 1, model 0x1001 op 0x8204 len 1: 00
uart:~$ mesh models msg send-rsp 1 0x1001 0004 0x8201 0x8204
len: 1
payload: 00
cmd_end
[00:22:14.724,945] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00

uart:~$ mesh models msg send-rsp 1 0x1001 0004 0x8202 0x8204 0000
len: 1
payload: 00
cmd_end
[00:24:11.538,848] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00
[00:24:11.567,321] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00
[00:24:11.567,382] <inf> model: from 0x0004 dst 0x0002 rssi -20 element 1, model 0x1001 op 0x8204 len 1: 00
[00:24:11.593,200] <inf> model: net_idx 0x0000 app_idx 0x0000 src 0x0004 len 1: 00
[00:24:11.593,231] <inf> model: from 0x0004 dst 0xc000 rssi -20 element 1, model 0x1001 op 0x8204 len 1: 00