Use permissions hooks to create/enable/disable users

[tituspijean]

Fixes #33

Basically, now the app will create and enable, or disable users whenever an aeneria.* permission is given to a user or a group. If it's given to a group (all_users by default in YunoHost), then each user of said group will be processed.

PR Status

• [x] Code finished and ready to be reviewed/tested
• [x] The fix/enhancement were manually tested (if applicable)

Automatic tests

Automatic tests can be triggered on https://ci-apps-dev.yunohost.org/ after creating the PR, by commenting "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!". (N.B. : for this to work you need to be a member of the Yunohost-Apps organization)

[tituspijean]

!testme

[yunohost-bot]

:sunflower: