Add new page(s) to documentation listing all our tables

[fingolfin]

Two ideas for using the bib data when we have it:

1. generate a page / pages in the manual with a list of all table, and also for each table
2. for each paper, list which tables resulted from it

In an ideal world these connections (which form a graph) would be computable by querying our data (that means each table object would need to contain a vector/list of the bib items it references)

Originally posted by @fingolfin in #115 (comment)