Add new AD configuration table

This task is part of story #7575 create a "new kanban" on AD homepage

This step is mandatory in order to deactivate scrum view in AD homepage

Change-Id: Id24443620886bb175c471431d41ca9fdd06fd316
Extract Configuration stuff from Kanban stuff

This task is part of story #7575 create a "new kanban" on AD homepage

This step is mandatory in order to deactivate scrum view in AD homepage

Change-Id: I13364d174177b0696953c8b7cbdce403f9ab92c5
Be able to have only Kanban in AD homepage

This task is part of story #7575 create a "new kanban" on AD homepage

At least one option (scrum or kanban) must be selected.

Change-Id: I49ae073118f6b6e77ce416600913a6d555d76257
Display a warning message if user can't see anything

This task is part of story #7575 create a "new kanban" on AD homepage

Change-Id: I2a6bb0d7465c979466123562d9182bafbab077b6
Merge commit 'refs/changes/04/3304/1' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  Display a warning message if user can't see anything
  Be able to have only Kanban in AD homepage
  Extract Configuration stuff from Kanban stuff
  Add new AD configuration table
This is Tuleap 7.7.99.46

Change-Id: I05f9fc7c18fc8db9cac38a547f76823b5e720e50