Support running an algorithm multiple times with the same parameter combination

[agitter]

Omics Integrator 1 is sometimes run with the same parameter combination many times when r is nonzero, which introduces edge noise. That is not currently possible in SPRAS.

We could add a new parameter type in the config file that is the number of times to run with that parameter combination. The config parser would expand that into a unique integer counter.

This could be useful for any non-deterministic algorithm.