Admin - redirect to the repository form when creation sucessfull

* This allow the user to set the rights for this repository
Annotations - Handle schema in postgresql QGIS datasource

* If the table is like "public"."mytable", correct Lizmap so that everything works fine.
Cache - Allow the admins to remove cache for layers in map view

If the user is logged as admin user with appropriate rights, a new red cross is displayed after the layer title in the legend to let it remove the cache for this layer