Gallery plugin

[AOKP]

I saw some discussions for this before, but it seems like it never has been pursued.
Would it be possible to create a plugin which enables a forum wide gallery? Similar to what other forums offer.

Features:

• Upload images outside of topics
• Create and manage albums
• Allow users to comment and like images
• Widget to display latest images
• Notify image/album owners of new comments/likes

How complex is this?
Would this be interesting for the nodeBB team to integrate as an offical plugin?

I would more than happy drop in a few hundred bucks to get this going, eventually multiple people would want to hop in.