LPS-46622 See docs metadata from workflow task

It is needed because, when a reviewer is validating a document, he/she needs to
be able to see its medata and the download button.

This problem happens from My workflow tasks and My workflowInstances
LPS-46620 DDMStructure shouldn't be null
LPS-46620 Articles should have a structure
LPS-46620 Moves the code near the usage
LPS-46620 Adds new method to get the ancestor templates
LPS-46620 Uses the new method
LPS-46620 Makes method consistent with DDMTemplates
LPS-46620 Apply same pattern to template
LPS-46620 missing renamings and use finder with array of groups
LPS-46620 Auto
LPS-45615 SF
LPS-45990 An abstracted model for Nested Sets Tree
LPS-45990 Unit test
LPS-45990 Apply NestedSetsTreeNodeModel to models
LPS-45990 Default persistence impl of Nested Sets Tree model
LPS-45990 DefaultPersistenceNestedSetsTreeManager should not use auto flush, as the session has to be previously checked for dirtiness.
LPS-45990 Integration test
LPS-45990 Use NestedSetsTreeManager in generated persistence for nested sets tree support
LPS-45990 Use proper persistence method rather than finder method
LPS-45990 Fix AssetCategoryServiceTest