* fix `make grpc` on new checkouts
* update proto files
* add some stub
* prototype with fake events
* notifying about events
* pass events
* events are being sent
* transfer headers to filters
* create the “filters” struct
* implement new heads
* PoC of New Heads subscription
* fix keep alive
* fixups for the client
* add “type” to the event
* support header event type on client
* better stage refactor
* fixup for the eth backend
* fixups
* fix tests
* fix tests
* fix linters
* address comments
* remove unused log
* it compiles
* after recent master
* fix linters warnings
* grpcV7
* go mod tidy
* unmarshall adresses or adress
* fix linters
* after cr
* after cr
* after cr
* after cr
* fix tests
* remove dev version
* it compiles
* mod tidy
* fix bin deps
* use stable version of grpc
* switch back to master constructor
* switch back to master constructor
* add a bit docs
* add a bit docs
Co-authored-by: Alexey Akhunov <akhounov@gmail.com>
Co-authored-by: alex.sharov <AskAlexSharov@gmail.com>