[HaveIBeenPwnedBridge] Add item limit parameter, set default limit to 20 (#1219)
[HaveIBeenPwnedBridge] Add item limit parameter, set default limit to 20 (#1219)

* Add `item_limit` parameter to allow user to control number of item returned by bridge. Suggested by @triatic and @somini (code).

RSS-Bridge/rss-bridge,Riduidel/rss-bridge,Riduidel/rss-bridge,ORelio/rss-bridge,Frenzie/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,Frenzie/rss-bridge,ORelio/rss-bridge,Riduidel/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,kranack/rss-bridge,sebsauvage/rss-bridge,ORelio/rss-bridge,kranack/rss-bridge