Revise variable names to align with changes to `element-calcium-imaging`

[CBroz1]

See this discussion. By aligning variable names across schemas (e.g., acquisition_software -> acq_software), we allow users' understanding of one to transfer to the other via stylistic consistency.

Revert miniscope where possible to calcium-imaging convention?

[tdincer]

This is a big operation as it's not backward compatible. It would affect the SciOps operations.

[CBroz1]

@kabilar - Therefore miniscope should change to match calcium imaging, or we should carry the differences?

[kabilar]

Thanks @CBroz1 @tdincer. Let's revert this change. I had made the acq_software to acquisition_software update since this field was now in the sessions CSV file. And the user would have to interpret the acq_software heading. Since this update would involve many repositories, we can revert acquisition_software to acq_software.