feat: tree table modifications

[etimr]

Tree Table entity Genres is now enabled for modifications.
Following functionality is tested on HANA and SQLite:

• Create a new root node, create a new child node
• Reassign a parent node either via Drag&Drop or Cut/Paste
• Edit a node, keep draft for this node
• Deep Delete with/without an existing child node with draft
• ValueHelp

[johannes-vogel]

Does that mean the maintenance of trees only works with bypass enabled?

[etimr]

no, you can CREATE, EDIT and DELETE nodes (root and child) without @odata.draft.bypass annotation, only CUT/PASTE (changing a parent with @odata.bind) doesn't work without @odata.draft.bypass, because we are modifying an active entity directly.

[johannes-vogel]

I propose we wait until the next release and then use cds.fiori.direct_crud to enable it globally.

[etimr]

cannot be merged yet because of https://github.tools.sap/cap/cdsnode/issues/2503#issuecomment-18095257

[vl-leon]

(still blocked)

[johannes-vogel]

I think this will work with cds10 and removing the annotation. direct_crud has been split in two feature flags. bypass_drafts is enabled by default. draft_new_action is opt in. The reported problem only exist with draft_new_action.

@vl-leon Can you double check?