Add a HopSpider base class

[irl]

This class will probably subclass ForgeSpider and will send packets with increasing TTL until a response is received. This will require a new function to be used in ForgeSpider allowing for making decisions based on any packet received (to avoid incrementing the TTL way past where it's already hit the server).

[britram]

note: this is just a plugin, but needs #109

[britram]

#180