Add a failing test for broken table

[#70476292]
Fix tables with center env

Work by reducing to a previously solved problem (for figures).

[Delivers #70476292]
[#70476292]

* 70476292-table-xrefs:
  Fix tables with center env
  Add a failing test for broken table
Add a kludge for footnotesize in tables

[Delivers #70476292]
[#70476292]

* 70476292-table-xrefs:
  Add a kludge for footnotesize in tables