feature: biclique-free graphs

[nsajko]

These are parameterized by a single integer parameter, t:

• https://en.wikipedia.org/wiki/Biclique-free_graph

[nsajko]

Ideally there would be an integer property for this, but I don't know if there's an established name?

[nsajko]

https://math.codidact.com/posts/294694