Core/Player: split table player_classlevelstats into two tables by introducing player_racestats for race specific offsets

src/server/game/Globals/ObjectMgr.h

@@ -668,9 +668,7 @@ typedef std::vector<PlayerCreateInfoItem> PlayerCreateInfoItems;
 
 struct PlayerLevelInfo
 {
-    PlayerLevelInfo() { for (uint8 i = 0; i < MAX_STATS; ++i) stats[i] = 0; }
-
-    uint8 stats[MAX_STATS];
+    uint16 stats[MAX_STATS] = { };
 };
 
 typedef std::vector<uint32> PlayerCreateInfoSpells;