Python "Class"ification Refactor

This refactor should:
- [x] imaris writer class should close without requiring arguments.
- [ ] make an NI class of some form, maybe `WaveformHardware`
- [ ] NI should close safely if opened in continuous mode.
- [ ] have a sensible ao_name_to_channel mapping
- [x] print out sensible waveforms in a pdf
- [x] have config.py similarly written to config.py for the mesospim
- [x] use the Spim base class for file management
- [x] iterate through tiles, not steps.
- [ ] consider moving volume to step calculations to the Spim base class
- [x] be simulatable (memory resources can be adjusted via config)
- [ ] minimize tile transformations
- [x] handle remappable axes
- [x] handle backlash
- [x] do a time estimate
- [x] run dataset size checks on storage locations