Handle slash in documents name

When using document name containing slash, the CoreSession breaks with different behaviour. In most cases, the CoreSession tries to move the document in the corresponding parent which does not exists:
If the expected name is "one/two/three", the CoreSession tries to put the document in parentPath/one/two with name three.

CoreSession.createDocumentModel("/", "test/toast", "Document") => The parent /test does not exists !

We should eitheir escape the name by using the PathSegmentService.

Or - at least - throw the same exception in:

• org.nuxeo.ecm.core.api.CoreSession.createDocumentModel(String, String, String)
• org.nuxeo.ecm.core.api.CoreSession.importDocuments(List<DocumentModel>)
• org.nuxeo.ecm.core.api.CoreSession.copy(DocumentRef, DocumentRef, String)
• org.nuxeo.ecm.core.api.CoreSession.move(DocumentRef, DocumentRef, String)