Core/Defines: Update some enums to 6.0

ContentLevels, Expansions, Races, Powers, Languages, SpellCastResult, GameobjectTypes,
TextEmotes, Emotes, Anim, LockType, CreatureType, CreatureFamily, Holidays, QuestType,
QuestSort, SkillType, TotemCategory and BattlegroundTypeId

src/server/game/DataStores/DBCStores.cpp

@@ -957,6 +957,10 @@ uint32 GetMaxLevelForExpansion(uint32 expansion)
             return 80;
         case CONTENT_81_85:
             return 85;
+        case CONTENT_86_90:
+            return 90;
+        case CONTENT_91_100:
+            return 100;
         default:
             break;
     }

src/server/game/DataStores/DBCStores.h

@@ -52,6 +52,8 @@ enum ContentLevels
     CONTENT_61_70   = 1,
     CONTENT_71_80   = 2,
     CONTENT_81_85   = 3,
+    CONTENT_86_90   = 4,
+    CONTENT_91_100  = 5
     MAX_CONTENT
 };