Create a graph browsing interface for MEHDIE tool

[tomersagi]

Start with VOWL https://service.tib.eu/webvowl/

[tomersagi]

• [x] Add to GUI
• [x] Tie to static file
• [ ] Add issues: query mechanism, filter mechanisms (type, time, geo)

[tomersagi]

GUI ideas:

• Add a tab called "Graph"
• Free-text search to find a node
• Filters to highlight/limit nodes of a type

[tomersagi]

Using a Node.js tool called rdf-3d: https://github.com/langsamu/rdf-3d

[tomersagi]

• [x] Update architecture page on MEHDIE to reflect this setup
• [x] Add deployment instructions for rdf-3d
• [x] Add installation instructions for rdf-3d

[tomersagi]

Changed to this RDF visualization tool: https://github.com/Rathachai/d3rdf/tree/master