Registers grpc routes for x/gov (cosmos#7216)

* Registers grpc routes for x/gov

* added todos

* order

* lint

* added norace build flag

* new line

* review changes

Co-authored-by: Anil Kumar Kammari <[email protected]>
Co-authored-by: SaReN <[email protected]>
Co-authored-by: Alexander Bezobchuk <[email protected]>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>