review strategy BNP12

[obatirou]

What

For now, BNP12 points are generated with points from altbn128 extended to BNF12. It will generate point with only the first coeff being 0
The strategy should generate random valid point with potentially multiple coeff being non zero.

How

Use try and increment (suggested by @zmalatrax, https://eprint.iacr.org/2009/226.pdf), find a generator or find an other way of doing it.

[obatirou]

try and increment leads to hypothesis health checks being triggered
too_slow, large_base_example, data_too_large