Support for organizing tokens into collections

[Matt Galligan]

While tags originally seemed like the best route to organize tokens as they would be able to be rendered as index pages, there could be a lot of value in supporting the idea of "collections" as a first-class citizen in Rodeo.

There are many use cases collections could provide:

• Enabling a collector to bring together many disparate pieces under a category (e.g. "OG tokens, pixel art, etc.")
• Enabling a creator to organize a series of works under one banner (Beeple's "Everydays" vs. any other project)
• Enabling a curator to promote the sale of different works from different artists together as a single collection

I propose that collections would have:

• Title
• Description
• Assets
• Cover art and logo (optional)

Additionally we could eventually support "smart collections" which could have a ruleset to populate them, all of which could be based on our pre-existing contexts such as the creator's address, owner's address, timestamp, etc.