Make diagram elements clickable

[jp7677]

Creating as a draft since embedding the svg images directly into the html (esp. for markdown) is not that clean.

Please also note that the diagrams are no longer scaled, thus they are always shown with 100% size. I think this is a good thing, but may be not everyone agrees.

[dirkgroot]

Really cool! Being able to click on elements on diagrams makes navigating the site very smooth and intuitive!

Besides a few minor remarks, the code looks good to me, except for the svgFactory thing. I understand why it's there, but I'd prefer a simpler solution, if possible, but I can't think of one right now. I'm going to give it some thought.

[jp7677]

Both nits are addressed.

Yeah, I've struggled as well with the svgFactory, this is what I came up with after several attempts :). Other solutions for combining the generated and generating world where imho even uglier, like putting more properties in the context and then doing the file loading in the view models.

[dirkgroot]

@jp7677 I see. I'm okay with merging this. I'll create an issue to remind myself to think about a better design for this, but it's good enough as it is, I think.