Draft: Implement streaming version of BytecodePolynomials

[jprider63]

@moodlezoup @sragss, I've started implementing a streaming version of BytecodePolynomials. I want to make sure we're on the right track before we start migrating the code to use this streaming behavior.

I created the MapState iterator since the stream mutates final_cts as it processes the trace. It seems like this should exist in the standard library, but I couldn't find anything that accomplishes this. One limitation of this is that final_cts can't be read until the stream is consumed. I'm not sure if this is feasible with how the code uses final_cts. If not, we may need to do an additional pass upfront that computes final_cts.

[moodlezoup]

I think this is on the right track. I believe it should be fine that the final state isn't materialized until the stream is consumed, and I imagine doing so is more efficient than an additional pass upfront. That said, if it ends up being simpler to do the generate final_cts upfront, I would do so for the initial version. Nice work!