fix sesion never end and implement create user funcionality

msql_acces.cpp

@@ -89,3 +89,11 @@ bool msql_acces::get_package_exists(std::string package){
 
   return ret>0;
 }
+
+void msql_acces::create_user(std::string user, std::string pass, bool admin){
+  sql::PreparedStatement *pstmt = con->prepareStatement("insert into users(username, passwd, admin) values(?, ?, ?)");
+  pstmt->setString(1,user);
+  pstmt->setString(2,pass);
+  pstmt->setBoolean(3,admin);
+  sql::ResultSet *res = pstmt->executeQuery();
+}