Implement Sequential Quasi Monte Carlo

[AdrienCorenflos]

Implement the method listed in https://arxiv.org/abs/1402.4039

This requires a particular structure slightly differing from the current state of SMC: resampling and propagation are done via consumption of low-discrepancy sequences.

[ryantjx]

@AdrienCorenflos Hi Adrien, I would like to take on this task!