Add an AdhocCommandsHandler to store commands specific to IRC servers

src/xmpp/biboumi_component.hpp

@@ -97,6 +97,8 @@ private:
    */
   std::unordered_map<std::string, std::unique_ptr<Bridge>> bridges;
 
+  AdhocCommandsHandler irc_server_adhoc_commands_handler;
+
   BiboumiComponent(const BiboumiComponent&) = delete;
   BiboumiComponent(BiboumiComponent&&) = delete;
   BiboumiComponent& operator=(const BiboumiComponent&) = delete;