New TraceroutePing probe module

Here's a module to traceroute past an intermediate gateway, and use the TTL_EXCEEDED replies as data on the gateway.  It's about 8h old, so *perhaps* a bit green...

does this work with perl 5.20 ? due to smartmatch deprectaion ?

maybe just use the simple
````
for ($x){
   /match/ && do { ... ; next; }
  ...
}
````
form