[7980] Implement item use target requirements store and check (new table item_required_target). Author: NoFantasy

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

    * Also implement this table reload
    * Static Spell::SendCastResult function for call not from spell code.
      Can be also used in scripts where need send explicitly spell cast error to client.

--HG--
branch : trunk

src/game/Level3.cpp

@@ -668,6 +668,7 @@ bool ChatHandler::HandleReloadAllItemCommand(const char*)
 {
     HandleReloadPageTextsCommand("a");
     HandleReloadItemEnchantementsCommand("a");
+    HandleReloadItemRequiredTragetCommand("a");
     return true;
 }
 
@@ -1107,6 +1108,14 @@ bool ChatHandler::HandleReloadItemEnchantementsCommand(const char*)
     return true;
 }
 
+bool ChatHandler::HandleReloadItemRequiredTragetCommand(const char*)
+{
+    sLog.outString( "Re-Loading Item Required Targets Table..." );
+    objmgr.LoadItemRequiredTarget();
+    SendGlobalSysMessage("DB table `item_required_target` reloaded.");
+    return true;
+}
+
 bool ChatHandler::HandleReloadGameObjectScriptsCommand(const char* arg)
 {
     if(sWorld.IsScriptScheduled())