Refactor and join few initial modules
Every module can be selectively chosen and is visible in (re)Foris. It makes little to no sense to have router uname and other router identification steps separate. In most cases we just want all of them just to know router we are dealing with. In the end it creates clutter in web interface.
- serial number
- OS release
- current date and time into the one system-info module.
Date module after removal of current date and time was renamed to ntp.
Netstat module was renamed to sockets and uses newer 'ss' instead of 'netstat'. The 'ss' provides us with even more info.
Packages module was extended to debug opkg on top of just listing packages. This is required not only to debug opkg bug also to compare synchronization of configuration with updater.