OO-3489, OO-3490, OO-3491, OO-3495, OO-3499, OO-3500, OO-3501: finish the export process, delete files after zipping, send email... and more exported data

OO-3489, OO-3492, OO-3493, OO-3494, OO-3496, OO-3497: infrastructure to export user data, export  portraits, notes, personal folder, calendars, subscriptions, delete calendars after usser deletion

OO-3296: implement migration tool from institution resource manager to learn resource manager based on organizations

OO-3297: refactor the user management to use organization for managing the roles instead of named security groups

OO-3288, OO-3297, OO-3291: add model for organisations and curriculums, add curriculum manager global role

OO-2967: refactor the list of assessed identities in assessment tools to be delivered by the resource or the course element them self

OO-2967: all a list of the assessment planned today and in the future in assessment tool, add a message if an assessment is done currently

OO-3193: render the date of the certificate in the excel download of the list of assessed identities

OO-3165	: add manual score and final score of the test, score / passed from course element to the QTI 2.1 export

OO-3157: jump to the root node and show a message if the course element was deleted while browsing the assessment tool by groups

OO-3136. prevent select in with all the participants identity keys of a course or a group in the coaching tool as some as very large number of members (> 32768)

OO-2981: Do not show error message when email is sent correctly. Password reset if several users have the same email address.

OO-3055: add new e-Assessment node in Administration, add a new document pool module, refactor the administration of taxonomy to separate the document pool features from the taxonomy itself, add an administration panl for the question pool