[development] Table hook idea

[Mike Cantelon]

Is there any interest in adding hook support to table rows and cells to 
allow on-the-fly modification of table data by modules? Something like 
"table_alter($headers, $rows)" and/or "row_alter" and "cell_alter". 
Seems to me this would be easy to do by adding support for an "id" key 
for tables, rows, and/or cells so if the id is set the hook is invoked 
in other modules.

Cheers,
Mike