* upgrade vault dependency set
* etcd and grpc issues:
* better for tests
* testing
* all upgrades for hashicorp deps
* kubernetes plugin upgrade seems to work
* kubernetes plugin upgrade seems to work
* etcd and a bunch of other stuff
* all vulnerable packages upgraded
* k8s is broken in linux env but not locally
* test fixes
* fix testing
* fix etcd and grpc
* fix etcd and grpc
* use master branch of go-testing-interface
* roll back etcd upgrade
* have to fix grpc since other vendors pull in grpc 1.35.0 but we cant due to etcd
* rolling back in the replace directives
* a few more testing dependencies to clean up
* fix go mod vendor
* Add grpc plugins
* Add grpc plugins
* Translate wrap info to/from proto
* Add nil checks
* Fix nil marshaling errors
* Provide logging through the go-plugin logger
* handle errors in the messages
* Update the TLS config so bidirectional connections work
* Add connectivity checks
* Restart plugin and add timeouts where context is not availible
* Add the response wrap data into the grpc system implementation
* Add leaseoptions to pb.Auth
* Add an error translator
* Add tests for translating the proto objects
* Fix rename of function
* Add tracing to plugins for easier debugging
* Handle plugin crashes with the go-plugin context
* Add test for grpcStorage
* Add tests for backend and system
* Bump go-plugin for GRPCBroker
* Remove RegisterLicense
* Add casing translations for new proto messages
* Use doneCtx in grpcClient
* Use doneCtx in grpcClient
* s/shutdown/shut down/
