Added missing config file

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/fork@1807 b32b6428-25c9-4566-ad07-03861ab6144f

apps/dashboard/xaal.dashboard.ini.sample

+[config]
+addr = xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx