Add TREE support

[rubensworks]

Issue type:

• ➕ Feature request

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Description:

Similar to #53, link extractor should be added for TREE hypermedia controls so that certain links can be discovered and prioritized if they are relevant for the current query.

[github-actions]

Thanks for the suggestion!

[pietercolpaert]

Relevant pull request that implements the first step: metadata extraction and naive implementation following all links: #77

[rubensworks]

For reference, @constraintAutomaton is working on this.