Allow for generating an indexing for a subset of the generated table summaries #13
Description
When running Pneuma on a large amount of tables, the summarized context sometimes exceeds the maximum number of tokens allowed. While there seems to be a parameter in the generate index function which allows for generating an index for tables by ID, it might be useful to be able to specify an arbitrary amount of tables, for example the first 50 tables, that one might want summarized in case the search space for a question is so large that pneuma's indexing cannot accommodate it.