[7839] Rafactoring player targeting code in chat command and related cleanups/improvments.

* New extractOptFirstArg function for easy get 2 args in case option playe name as first arg.
    * New extractPlayerTarget function for get player pointer/guid/name for online/offline player base at provided name
      or if not provided by current seelction with error cases processing.
    * Property apply mute/unmute in case use different character name from loggined currently for account.
    * .reset commands can be used from console now
    * .repairitems comamnd can be used from console now but only to online player.

Author: VladimirMangos

--HG--
branch : trunk

src/game/Chat.h

@@ -560,11 +560,16 @@ class ChatHandler
         char*     extractKeyFromLink(char* text, char const* linkType, char** something1 = NULL);
         char*     extractKeyFromLink(char* text, char const* const* linkTypes, int* found_idx, char** something1 = NULL);
 
+        // if args have single value then it return in arg2 and arg1 == NULL
+        void      extractOptFirstArg(char* args, char** arg1, char** arg2);
+
         uint32    extractSpellIdFromLink(char* text);
         uint64    extractGuidFromLink(char* text);
         GameTele const* extractGameTeleFromLink(char* text);
         bool GetPlayerGroupAndGUIDByName(const char* cname, Player* &plr, Group* &group, uint64 &guid, bool offline = false);
         std::string extractPlayerNameFromLink(char* text);
+        // select by arg (name/link) or in-game selection online/offline player
+        bool extractPlayerTarget(char* args, Player** player, uint64* player_guid = NULL, std::string* player_name = NULL);
 
         std::string playerLink(std::string const& name) const { return m_session ? "|cffffffff|Hplayer:"+name+"|h["+name+"]|h|r" : name; }
         virtual std::string GetNameLink() const { return GetNameLink(m_session->GetPlayer()); }