Afl-Map -> Tracker modules

[bannsec]

This will require getting changes into driller from shellphish to get working. Basically, Driller utilizes afl-map specifically to monitor for "did I make this transition before". I want to abstract this to a generalized layer that can still ask that question. However, the "have i made this transition" should be agnostic of "what" monitored it.

This would allow integration of Drilling concepts with fuzzing utilities that are not afl-fuzz.