Release 1.8.0

Added

• Add continuation for get permissions request and response

Changed

• Improve types used for testing, specifically on MockExecutionContext returned by newMockExecutionContext().
  fetcher.fetch, temporaryBlobStorage.storeUrl, and temporaryBlobStorage.storeBlob should be stubbed using
  resolves() and rejects() since the underlying methods return promises
• Fix untransformBody helper for array inputs