feature - (#1100) Linking of "trusted" accounts to allow altbot-control apart from own account or guild (#1267)

* Add table to store the security keys for accounts.

* Add table to store relationships between accounts.

* Add a new configuration option to enable or disable trusted account bots.

* add checks for linked accounts

* Handle account linking and chat commands

* fix uppercase typo

* change query & fix chatcommandtable

* add missing functions to header

* move account linking to updates dir

* moved table creation to correct updates folder

* use playerbots db instead of character db

* fix db

* fix install?

* remove duplicated logic and add hashing to stored securityKey

* add object before call

* change chat variable

* rename SQL file for correct execution order

* add  header include for ubuntu compatibility

* remove old sql

src/PlayerbotMgr.h

@@ -28,6 +28,7 @@ public:
     virtual ~PlayerbotHolder(){};
 
     void AddPlayerBot(ObjectGuid guid, uint32 masterAccountId);
+    bool IsAccountLinked(uint32 accountId, uint32 masterAccountId);
     void HandlePlayerBotLoginCallback(PlayerbotLoginQueryHolder const& holder);
 
     void LogoutPlayerBot(ObjectGuid guid);
@@ -82,6 +83,11 @@ public:
 
     void SaveToDB();
 
+    void HandleSetSecurityKeyCommand(Player* player, const std::string& key);
+    void HandleLinkAccountCommand(Player* player, const std::string& accountName, const std::string& key);
+    void HandleViewLinkedAccountsCommand(Player* player);
+    void HandleUnlinkAccountCommand(Player* player, const std::string& accountName);
+
 protected:
     void OnBotLoginInternal(Player* const bot) override;
     void CheckTellErrors(uint32 elapsed);