Feat/seedless onboarding controller

[lwin-kyaw]

Explanation

Adds new seedless onboarding controller. This controller allows MM extension and mobile users to login with google, apple accounts. This controller communicates with web3auth nodes + relies on toprf sdk (unreleased) to perform CRU operations related to backing up srps.

The full list of operations supported are as follows:

• Authenticate OAuth user using the seedless onboarding flow and determine if the user is already registered or not
• Create a new Toprf key and backup seed phrase
• Add a new seed phrase backup to the metadata store
• Add array of new seed phrase backups to the metadata store in batch (useful in multi-srp flow)
• Fetch seed phrase metadata from the metadata store
• Update the password of the seedless onboarding flow

The controller also persists some data to the local encrypted vault similar to keyring controller. This vault is encrypted with user password and contains ek, sk related to toprf flow.
We also store backupHashes locally to showcase in settings page whether a srp is backed up or not

The following items are not included in this PR and will be included in the next one

• what to do when nodeAuthTokens are expired? - expires based on login timeout - adding support for refresh tokens
• what to do when toprfEncryptionKey, toprfAuthKeyPair expire? - expires when user changes password - solved by password syncing
• support password syncing when available (currently under design)

References

Please refer to seedless onboarding feature narrative

Changelog

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

[chaitanyapotti]

lgtm

[chaitanyapotti]

https://github.com/MetaMask/toprf-secure-backup/issues/106
Need to wait until this issue is resolved.

[mcmire]

Looks pretty good. I just noticed a couple of things in index.ts I must have not caught the first time around. (The rest of the comments are minor.)