update (conf): Added conf for Anti-Knock back

sorry about that. forgot to make one

conf/Anticheat.conf.dist

@@ -82,6 +82,7 @@ Anticheat.IgnoreControlHack = 1
 Anticheat.DetectZaxisHack =1
 Anticheat.AntiSwimHack = 1
 Anticheat.DetectGravityHack = 1
+Anticheat.AntiKnockBack = 1
 
 #     Anticheat.StricterFlyHackCheck
 #       Description: Checks moveflag ascending (may give false positives)

src/AnticheatMgr.cpp

@@ -693,6 +693,9 @@ void AnticheatMgr::AntiSwimHackDetection(Player* player, MovementInfo movementIn
 // basic detection
 void AnticheatMgr::AntiKnockBackHactDetection(Player* player, MovementInfo movementInfo)
 {
+    if (!sConfigMgr->GetOption<bool>("Anticheat.AntiKnockBack", true))
+        return;
+
     ObjectGuid key = player->GetGUID();
 
     //if a knockback helper is not passed then we ignore