Moved the *Serv help functions to Command, will come in use later with subcommands

src/command.cpp

@@ -22,6 +22,8 @@ Command::~Command()
 
 CommandReturn Command::Execute(User *u, const std::vector<ci::string> &) { return MOD_CONT; }
 
+void Command::OnServHelp(User *u) { }
+
 bool Command::OnHelp(User *u, const ci::string &subcommand) { return false; }
 
 void Command::OnSyntaxError(User *u, const ci::string &subcommand) { }