NXP-16090: Format Java code
NXP-16213: Add 'lastContributor' dublincore metadata to FileSystemItem

Conflicts:
	nuxeo-drive-operations/src/test/java/org/nuxeo/drive/hierarchy/permission/TestPermissionHierarchy.java
	nuxeo-drive-operations/src/test/java/org/nuxeo/drive/hierarchy/userworkspace/TestUserWorkspaceHierarchy.java