Add aquila sampler

[Aaron-Robertson]

Fixes #72

Description of changes:

Testing done:

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[JordanAWS]

Hey @Aaron-Robertson , it looks like there's still some work to be done on this issue. Do you think you'll be able to finish it by the end of the hackathon today?

[Aaron-Robertson]

That's my goal @JordanAWS, but it's seeming somewhat unlikely. I'm not sure if @golanor kept with it or not though!

[golanor]

I haven't