Edge Labels at both sides of the edge

[ETFairfax]

Make it possible to set individual Edge labels to both sides of a edge.

Example:

---

Hi,

I've been using the old version for the last 2 weeks and just realised it's all moved over here!

Anyhoo, I'd like to reignite interest in this feature request if I may almende/vis#2104

Many thanks,

ETFairfax

[micahstubbs]

thanks for opening the issue @ETFairfax, and welcome 👋

if you or @pdugas would like to send a PR, I'd be happy to review it and help get it in. it looks like @pdugas may have a fix for this already almende/vis#2104 (comment)