Compute time scale for ndtiff datasets

[ieivanov]

No description provided.

[ieivanov]

@srivarra could you please take this PR forward? The purpose is to include the correct time scale for NDTiff dataset, which is scraped from the acquisition metadata. We have a similar implementation for OME-Tiff datasets which was introduced here: #308. NDTiff datasets may not have perfectly uniform time sampling (say acquiring images at [0, 9.8, 10.2] seconds) so I introduced a linear fit to get the acquisition "rate". Frequently, we'll also skip acquiring a timepoint - for example if the autofocus has troubles engaging. In that case the next t_idx=3 will be skipped and t_idx will be written at ~40 seconds. My implementation may already work - please give it a try, I'll point you to a couple test datasets.

[ieivanov]

This dataset should be a good start: /hpc/instruments/cm.mantis/2025_02_28_A549_GOLGA2_DENV/2025_02_28_A549_GOLGA2_DENV_chunked_1/2025_02_28_A549_GOLGA2_DENV_chunked_labelfree_1/ Here the acquisition was aborted for 8 timepoints, you can check the acquisition logs for more info. The acquisition rate should come out to ~600 seconds per timepoint.