Decrypting an ciphertext where its corresponding value equals empty, the payload property "plaintext" is missing in the response object. This fixes the problem by adding a new, distinct struct for decrypt batch response items where "omitempty" is not set.
* Start work on passing context to backends
* More work on passing context
* Unindent logical system
* Unindent token store
* Unindent passthrough
* Unindent cubbyhole
* Fix tests
* use requestContext in rollback and expiration managers
* transit: change batch input format
* transit: no json-in-json for batch response
* docs: transit: update batch input format
* transit: fix tests after changing response format
* Transit: Support batch encryption
* Address review feedback
* Make the normal flow go through as a batch request
* Transit: Error out if encryption fails during batch processing
* Transit: Infer the 'derived' parameter based on 'context' being set
* Transit: Batch encryption doc updates
* Transit: Return a JSON string instead of []byte
* Transit: Add batch encryption tests
* Remove plaintext empty check
* Added tests for batch encryption, more coming..
* Added more batch encryption tests
* Check for base64 decoding of plaintext before encrypting
* Transit: Support batch decryption
* Transit: Added tests for batch decryption
* Transit: Doc update for batch decryption
* Transit: Sync the path-help and website docs for decrypt endpoint
* Add batch processing for rewrap
* transit: input validation for context
* transit: add rewrap batch option to docs
* Remove unnecessary variables from test
* transit: Added tests for rewrap use cases
* Address review feedback
* Address review feedback
* Address review feedback
* transit: move input checking out of critical path
* transit: allow empty plaintexts for batch encryption
* transit: use common structs for batch processing
* transit: avoid duplicate creation of structs; add omitempty to response structs
* transit: address review feedback
* transit: fix tests
* address review feedback
* transit: fix tests
* transit: rewrap encrypt user error should not error out
* transit: error out for internal errors
