Auth

[afshin]

• Adds a new plugin that provides IS3Auth
• Removes default activation plugin
• Refactors the two remaining plugins somewhat

[afshin]

I think some follow up refactoring would be good, but I'd rather do it in another PR so that we can iterate on this.

[trungleduc]

Could you support also sessionToken like in this example?

import { S3Client } from '@aws-sdk/client-s3'

const {
  data: { session },
} = await supabase.auth.getSession()

const client = new S3Client({
  forcePathStyle: true,
  region: 'project_region',
  endpoint: 'https://project_ref.supabase.co/storage/v1/s3',
  credentials: {
    accessKeyId: 'project_ref',
    accessSecretKey: 'anonKey',
    sessionToken: session.access_token,
  },
})

[afshin]

Yes, sessionToken is supported because it is an optional field of S3ClientConfig