Feat seqflow pump

[hannalee2]

Updates

Updated SeqFlow to use the MasterSense pump, which is a new pump device for BARseq system
https://alleninstitute.sharepoint.com/:b:/s/Instrumentation/IQCRUIqMw-uzTqy_y4X4Z6hhAXHhgutepQd5IR47IiprbMo?e=RGJo1Y

Hardware Driver Integration:

• Added low-level serial drivers for MasterSense pump hardware.
• Removed the pump_vol() function from previous sim device. Control logic now use explicit start_pump and stop_pump calls.
• Added core Pump device APIs and wired them directly into the seqflow instrument level.

Fixed Issues

Merge Checklist

• update the changelog
• bump the version

[micahwoodard]

Had some file organization questions but functionally makes sense :)

[hannalee2]

Had some file organization questions but functionally makes sense :)

Thanks! Yes, we should definitely tackle the file organization at some point. I was honestly a bit confused about the best place to put the simulated drivers, base drivers, and the actual hardware drivers. Right now it's a bit inconsistent—some base classes are under devices/, while others are nested under specific drivers. Let's plan to standardize that in a future PR.

[micahwoodard]

Thanks for addressing questions. Looks good to me :)