[RGB21] Collectible NFT review & discussion

[UkolovaOlga]

Standard: #137
PR: #137

The goal of this issue is to consolidate the links to previous discussions and development of RGB-21 Schema for NFT and collectibles use cases and receive feedback from the community.

Related issues/questions

• Define TODO list to complete NFT support #130
• RGB-21 Feedback: Engraving & Reserves presentations#29
• RGB-21: Feedback on Ticker question presentations#28
• RGB-21 Schema: What should be the limit of the length of the name field? #76
• RGB-21 Schema: Do we need a NFT group ticker? #77
• RGB-21 Schema: Custom token data formatting #78
• RGB: collectible schema proposal RGB-WG/rgb-node#20

Dev call audio recordings 25.11.2020

LNP-BP/devcalls@1fbb7e7