Moved Debuff handling to Combat + Bugfixes

* Majority of mob debuff handling is moved to combatStep().
* Drain now kills the mob and does 40% overall damage.
* Bumped up active nano debuff durations, debuffs like drain linger longer but damage less.
* Debuffs are cleared upon mob death and retreating.
* Patched out vehicle off success packet spam
* Boosts and potions now cost the right amount (100 taros) and give the right quantity (100).
* Damage was tweaked slightly. At higher levels you are more likely to fall prey to rand().
* Enemies now use run animations during combat and retreating.

src/MobManager.hpp

@@ -46,7 +46,7 @@ struct Mob : public BaseNPC {
     // combat
     CNSocket *target = nullptr;
     time_t nextAttack = 0;
-
+    time_t lastDrainTime = 0;
 
     // drop
     int dropType;
@@ -142,4 +142,5 @@ namespace MobManager {
     void drainMobHP(Mob *mob, int amount);
     void incNextMovement(Mob *mob, time_t currTime=0);
     bool aggroCheck(Mob *mob, time_t currTime);
+    void clearDebuff(Mob *mob);
 }