Extend Options to add Custom Force-Directed Layouts

Hey @anvaka, first of all, thanks for the awesome library and your support!

I wanted to ask, whether it is possible to add custom force-directed layouts, i.e., ForceAtlas2. I saw your example, where you added d3-force, but I feel like its quite outdated and doesn't work for me. Additionally, I'm using Angular, so I have to adopt it to typescript first :D
