yi-hack-Allwinner 0.3.1

Fix/improve rtsp watchdog
Improve rRTSPServer starting phase
Fix mkswap path
Improve privacy.sh
Update onvif_srvd to the last commit
Update dropbear to 2022.82
Make /etc writable
Improve preset web service
Add sftp-server
Add shared library for sniffing and add ipc_notify
Add set_preset to ipc_cmd
Update mqttv4 to the last commit
Run 1 imggrabber only
Add option to force low res snapshot
Add option to disable thumbnails creation