[O] ANN/RFC: org-sidebar

[Adam Porter]

Hi all,

Inspired by a post on Reddit, which was inspired by the Organized plugin
for the Atom editor, I came up with this:

https://github.com/alphapapa/org-sidebar

This package presents a helpful sidebar view for Org buffers.  At the top
is a chronological list of scheduled and deadlined tasks in the current
buffer, and below that is a list of all other non-done to-do items.  If
the buffer is narrowed, the sidebar only shows items in the narrowed
portion; this allows seeing an overview of tasks in a subtree.

It's in an early stage of development, but I think it may be useful.
Any feedback would be appreciated.