Add type checks to `inetPtoN()` and `inetNtoP()`
-
inetPtoN()- Throw for not string input
- Throw for no match as IPv4 or IPv6
- optimize
const/letusage and placement
-
inetNtoP()- Throw for not string input
- Throw for not length 4 or 16
inetPtoN()
const/let usage and placementinetNtoP()