Add an alternate conda environment for running the Python code on Mac

[dabreegster]

I'm testing on Linux right now, and I can't get this working -- as it is, I hit "No compatible device found" trying to start OpenCL, even though the software drivers from pocl are installed. If I add ocl-icd-system, I get a segfault instead. Everything works fine in conda over in Ramp_UA ecotwins branch, and I haven't figured out the difference here yet.

I won't have access to my Mac till tonight, but I'll try it there then

[dabreegster]

I have some evidence this works on Mac. I need to reinstall some Rust dependencies, because some kind of corp policy appears to periodically wipe half the stuff I install there, but running out of time, so merging.

[dabreegster]

@mfbenitezp I can't confirm this works yet, but I'll be in Leeds for a few days without my Mac, so I can't test. It should hopefully take about 5 minutes to try this out. If you get time, let me know if it works.

[mfbenitezp]

Sure. Sorry I did not see this comment ( thats odd as I have notifications on). But I will try this out straightforward.