Add tools for check TCP connections

[cesarjorgemartinez]

Add tools for check TCP connections

Examples in:
https://gist.github.com/Khoulaiz/41b387883a208d6e914b
https://jansipke.nl/test-tcp-connection-without-telnet-nc/
https://coderwall.com/p/udnrjq/port-scanning-with-bash-without-sudo-nmap-or-nc
https://www.commandlinefu.com/commands/view/5298/ping-scanning-without-nmap

[cesarjorgemartinez]

Already are included by default tools as nc, traceroute, etc. I think that this tasks is not necessary, but not close by now, if we need in future.