Add bipartite vertex cover alongside dinic

[0b01]

Something like: https://github.com/mikolalysenko/bipartite-vertex-cover/blob/master/vcover.js

I can make a pull request when I'm done.

[EbTech]

That would be sweet. I forget: is the vertex cover possible to construct from the output of Dinic/Hopcroft-Karp, or does it need a separate algorithm?

[EbTech]

I suppose the vertex set in question is K from https://en.wikipedia.org/wiki/K%C5%91nig%27s_theorem_(graph_theory)#Proof

Edit: Looks like the example you linked does something similar, I see.