Adds 3 new user fields: exam_room, exam_schedule, exam_password.

Installation:
1. Install the plugin (check in the user profiling there are 3 new field types)
2. Add the plugin to a region, for example: menu_bottom and go to the chamilo homepage
   you will see a new Link "Course list". You can also go to plugin/widescale_exam/user_list.php