Add Agenda-esque feature

Would it be possible to add something like the agenda feature in actual org-mode into this plugin, so that we'd be able to see all of our dated to-dos "at a glance"?

(Great work on the plugin so far btw!)

No file, test, or entry point is named in the issue. Start by studying the existing plugin structure and the agenda feature in org-mode, then define the dated TODO views and acceptance criteria; done means users can see their dated TODOs at a glance.

Written by the indexing model from the issue text.