Capture NFT Pattern Library

A continuations of https://github.com/paritytech/capi/issues/222 This is a work in progress

Along with some psuedocode

Create conditionally owned NFTs : Example includes booster NFTs in a game, priviledge NFTs above a particular score in a test

import * as C from "../mod.ts";
const xNFTAddress = await C.nft.create({"conditional", ownershipEvaluatorFunction});
console.log(xNFTAddress);

Create fractionally owned NFTs : Examples include an event NFT owned fractionally by all attendees, Photo NFT owned by everyone who was in the photo
```
const xNFTAddress = await C.nft.create({"fractional"});
```
Create rentable NFTs / subscription based NFTs : Examples include metaverse land lease / renting power-ups/add-on in a game
```
const xNFTAddress = await C.nft.create({"rentable", rent});
```
Create generative NFTs : These are NFTs that change asset/attributes as time or ownership changes
```
const xNFTAddress = await C.nft.create({"generative", generativeAssetID});
```
Create on-chain NFTs: These NFTs store all the assets (like image/text/audio) on chain; examples include Proof Of Attendance Picture (POAP) , Appreciation/Kudos NFTs, Gift Voucher NFTs where owner's name and other details are the on chain content in the NFT
```
const xNFTAddress = await C.nft.create({"onChain", dynamicSVG});
```

Mint and Transfer NFTs

await C.nft.mint(xNFTAddress, ownerAddress);

Get NFT attribute : Useful for token gating access on basis of attribute value
```
await C.nft.get(attributeName);
```
Get all token holders
```
await C.nft.getHolders(xNFTAddress);
```

We can either use an existing library like rmrk or we can create NFT constructs from scratch. This is open for discussion.

paritytech / capi