Add Niko server as an alternative to noVNC

overlay/etc/supervisor.d/neko.ini

@@ -0,0 +1,16 @@
+
+[program:neko]
+autostart=false
+autorestart=true
+priority=30
+user=%(ENV_USER)s
+command=/usr/bin/neko serve --static "/var/www" --display %(ENV_DISPLAY)s --bind :%(ENV_PORT_NOVNC_WEB)s
+environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
+stopsignal=INT
+stopwaitsecs=5
+stdout_logfile=/home/%(ENV_USER)s/.cache/log/neko.log
+stdout_logfile_maxbytes=10MB
+stdout_logfile_backups=7
+stderr_logfile=/home/%(ENV_USER)s/.cache/log/neko.err.log
+stderr_logfile_maxbytes=10MB
+stderr_logfile_backups=7