Refactor cache handling and code callbacks

[extremeheat]

• Breaking : Replace cache factory function with factory object
• Breaking : Code callback function outputs are now standardized on all flows (previously, different on MSAL vs Live auth)
• Better accounting for cache when using default file system caching (fix List cached accounts #74)
• Support AbortController signal for request cancellation (fix Support aborting requests #128)
• Support passing custom scopes when getting token

Migration

Cache

function cache ({ cacheName,  username }) {
  return new Cache()
}
const authflow = new Authflow(userIdentifier = 'test', cache)

to

class CacheImpl implements Cache {
  // see index.d.ts
}
const cacheFactory = {
  createCache ({ cacheName,  username }) {
    return new Cache()
  }
}
const authflow = new Authflow(userIdentifier = 'test', cacheFactory)

codeCallback

See index.d.ts for new object returned on

const codeCallback = (data) => console.log(data)
const authflow = new Authflow(userIdentifier = 'test', cacheFactory, null, codeCallback)

[extremeheat]

Cc @LucienHH

[extremeheat]

For consideration, I think it could be a good idea to rename authTitle to client ID (in another PR). The name authTitle is confusing as the tokens are oauth client IDs and not necessarily Xbox title IDs.

[LucienHH]

Seems to be an issue with the caching of xbl tokens, each token is getting nested when being added to the cache so when the XSTS token expires all tokens stored to the xbl cache are then refreshed which isn't always needed.