Register gRPC Gateway routes (#7173)

* added unimplemeted code

* added a test for bank get balances

* fixed lint

* Fix decode error

* fixed tests

* added missing gRPC tests for x/bank

* added tests for params, rewards in x/distribution

* added tests for x/distr grpc tests

* added todos

* removed register grpc routes

* registered x/ibc client handlers

* updated todos

* fixed error

* fixed tests

* review changes

* review change

Co-authored-by: anilCSE <anil@vitwit.com>
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

x/auth/module.go

@@ -1,6 +1,7 @@
 package auth
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"math/rand"
@@ -66,7 +67,8 @@ func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Rout
 }
 
 // RegisterGRPCRoutes registers the gRPC Gateway routes for the auth module.
-func (a AppModuleBasic) RegisterGRPCRoutes(_ client.Context, _ *runtime.ServeMux) {
+func (AppModuleBasic) RegisterGRPCRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx))
 }
 
 // GetTxCmd returns the root tx command for the auth module.