NXP-11148: Add extension point to contribute the active file system item factories
NXP-11148: Take advantage of active file system item factories
NXP-11148: Refactor typo
NXP-11148: Format
NXP-11148: Add extension point to contribute the active top  level folder item factory
NXP-11148: Take advantage of active top level folder item factory
NXP-11148: Remove nuxeo-drive-hierarchy-permission + contribute all FSItem factories in nuxeo-drive-core + contribute permission and userworkspace active factories in nuxeo-drive-operation tests
Make NuxeoDriveFileSystemDeletionListener ignore system documents
Merge master