Extract or somehow store data from CellProfiler `experiment` tables in CytoTable output

This issue comes from a question @jenna-tomkinson raised about whether CytoTable can store `experiment` table data somehow. CytoTable doesn't currently include this data in output. Minor note: some testing datasets don't appear to store this data, so it would need to be a possibly optional inclusion (allowing for processing without breaking when implemented).

Start by tracing how CytoTable reads CellProfiler outputs and builds its output data, then investigate how experiment tables are represented in available datasets. Define optional handling for datasets that lack this data. Done means experiment data is included when present without breaking processing when it is absent.

Written by the indexing model from the issue text.