Core/Reputation: Named all reputation flags

Port From (https://github.com/TrinityCore/TrinityCore/commit/f6b919fafe45aaeba0c5572925e47562158314b1)

Source/Framework/Constants/SharedConst.cs

@@ -474,12 +474,14 @@ namespace Framework.Constants
         Monster = 8                               // aggressive creature from monster team
         // if none flags set then non-aggressive creature
     }
+
     public enum FactionTemplateFlags
     {
         PVP = 0x800,   // flagged for PvP
         ContestedGuard = 0x1000,   // faction will attack players that were involved in PvP combats
         HostileByDefault = 0x2000
     }
+
     public enum ReputationRank
     {
         None = -1,
@@ -494,6 +496,7 @@ namespace Framework.Constants
         Max = 8,
         Min = Hated
     }
+
     public enum ReputationSource
     {
         Kill,
@@ -504,17 +507,22 @@ namespace Framework.Constants
         RepeatableQuest,
         Spell
     }
-    public enum FactionFlags
+
+    [Flags]
+    public enum ReputationFlags : ushort
     {
-        None = 0x00,                 // no faction flag
-        Visible = 0x01,                 // makes visible in client (set or can be set at interaction with target of this faction)
-        AtWar = 0x02,                 // enable AtWar-button in client. player controlled (except opposition team always war state), Flag only set on initial creation
-        Hidden = 0x04,                 // hidden faction from reputation pane in client (player can gain reputation, but this update not sent to client)
-        InvisibleForced = 0x08,                 // always overwrite FACTION_FLAG_VISIBLE and hide faction in rep.list, used for hide opposite team factions
-        PeaceForced = 0x10,                 // always overwrite FACTION_FLAG_AT_WAR, used for prevent war with own team factions
-        Inactive = 0x20,                 // player controlled, state stored in characters.data (CMSG_SET_FACTION_INACTIVE)
-        Rival = 0x40,                 // flag for the two competing outland factions
-        Special = 0x80                  // horde and alliance home cities and their northrend allies have this flag
+        None = 0x0000,
+        Visible = 0x0001,                   // makes visible in client (set or can be set at interaction with target of this faction)
+        AtWar = 0x0002,                   // enable AtWar-button in client. player controlled (except opposition team always war state), Flag only set on initial creation
+        Hidden = 0x0004,                   // hidden faction from reputation pane in client (player can gain reputation, but this update not sent to client)
+        Header = 0x0008,                   // Display as header in UI
+        Peaceful = 0x0010,
+        Inactive = 0x0020,                   // player controlled (CMSG_SET_FACTION_INACTIVE)
+        ShowPropagated = 0x0040,
+        HeaderShowsBar = 0x0080,                   // Header has its own reputation bar
+        CapitalCityForRaceChange = 0x0100,
+        Guild = 0x0200,
+        GarrisonInvasion = 0x0400
     }
 
     public enum Gender : sbyte