Aguaclara

All functions in `research.floc_model` are now tested and dimensionally consistent. `diam_floc_max` and `ener_dis_diam_floc` are deprecated.

This release corrects the default last row index for `research.procoda_parser`'s `column_of_data()` and `column_of_time()` functions. In addition, rather than raising an exception, `column_of_time` ignores rows of notes after the starting row.

The 1.5" pipe (in nominal diameter) is now available for use in `core.pipes`.

The AguaClara package documentation now lists common units and constants available in the package's unit registry! This list is found in the [documentation page for `core.units`](https://aguaclara.github.io/aguaclara/core/units.html).

Several constants in ``core.constants`` have also been marked as deprecated due to irrelevance or redundancy with Pint package units and constants.

This release includes three updates:
* `aguaclara.core.pipes` is now included in the AguaClara package documentation
* The documentation site homepage has instructions on installing, contributing to, and using the package
* `aguaclara.core.units` has been added to package level imports, so `set_sig_figs()` can be accessed like so:
python
import aguaclara as ac
ac.set_sig_figs(3)

All functions in `physchem` now have visible documentation on the `aguaclara` [documentation website](https://aguaclara.github.io/aguaclara/).