Function to get array of links

Like get_pages is able to return an array of pages for a certain category, then a similar function would be nice for links.

This would allow one to perform custom display of links, without messing with SQL.

I’m missing the ability of alternate coloring of links without using client side javascript. And having a function to access the links without needing to perform SQL would make things a lot prettier. Also the existing get_links function should be able to reuse this new function.