Add variables linked to management of 'groups': uniqueMember - uniqueMemberOf

[SergioArbarviro]

In order to manage the groups and their members, the KeyCloak OAuth server requires that the following variables be managed.

For each group, the list of its members, with the following syntax:

uniqueMember: uid=[UID of the member], dc=[domain name], dc=[TLD of the domain name]

(e.g. uniqueMember: uid=400383ed-dc1a-41d6-ae87-7db25344a2b8,dc=cosmopolitical,dc=coop) This field is repeated as many times as there are members in the group.

For each user, the list of the groups that s/he belongs to, with the following syntax:

uniqueMemberOf: cn=[name of the group],dc=[domain name], dc=[TLD of the domain name] (e.g. uniqueMemberOf: cn=ordinaryMembersGroup,dc=cosmopolitical,dc=coop) This field is repeated as many times as there are groups to which the user belongs.

I propose that these variables be implemented and managed by AlirPunkto.

[ldidry]

For each group, the list of its members, with the following syntax: uniqueMember: uid=[UID of the member], dc=[domain name], dc=[TLD of the domain name]

NB: This is already handled in AlirPunkto.