Link prediction with DGL

[as51340]

Description

Implementing link prediction module with DGL. Work includes train, predict, set_model_parameters and test method. The goal is to implement a robust system that can work with a wide variety of datasets.

Pull request type

• [ ] Bugfix
• [ ] Algorithm/Module
• [x] Feature
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe): ######################################

Reviewer checklist (the reviewer checks this part)

Module/Algorithm

• [ ] Core algorithm/module implementation
• [ ] Query module implementation
• [ ] Unit tests
• [ ] End-to-end tests
• [ ] Code documentation
• [ ] README short description
• [ ] Documentation on memgraph/docs

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