Add support for the supannGroupe objectClass and its attributes

Descriptive title for this enhancement

add support for the supannGroupe objectClass and its attributes for groups and roles

Actual behavior

we don't support supann group on posix, groupofnames and roles

Expected behavior

support supannGroupe objectClass and its attributes for groups and roles

Step by step description of new behaviour

1. add a supann tab on the groups an roles
2. allow to fill the attributes of a group

supannGroupeDateFin : https://services.renater.fr/documentation/supann/supann2018/recommandations2018/attributs/supanngroupedatefin?s[]=supanngroupedatefin

supannGroupeAdminDN : https://services.renater.fr/documentation/supann/supann2018/recommandations2018/attributs/supanngroupeadmindn?s[]=supanngroupeadmindn

supannGroupeLecteurDN : https://services.renater.fr/documentation/supann/supann2018/recommandations2018/attributs/supanngroupelecteurdn?s[]=supanngroupelecteurdn

supannRefId : https://services.renater.fr/documentation/supann/supann2018/recommandations2018/attributs/supannrefid?s[]=supannrefid

Benefits

it will allow to manage fore example admin of the group and with the latest change in the acls it will make acls give automatic rights to people who have their dn in an supannGroupeAdminDN of the groups

Possible Drawbacks

none

Applicable Issues

lots of university or research center need to give access to some groups only, ha ephemeral groups etc...