Require proto.Message in client.Context.PrintOutput (#6999)

* Enable proto JSON json for cli tx & query

* WIP on tests

* Test fixes, cleanup

* Cleanup

* Address review comments

* Update client/context.go

Co-authored-by: Anil Kumar Kammari <anil@vitwit.com>

* Fixes

Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Anil Kumar Kammari <anil@vitwit.com>

x/params/client/cli/query.go

@@ -47,7 +47,7 @@ func NewQuerySubspaceParamsCmd() *cobra.Command {
 				return err
 			}
 
-			return clientCtx.PrintOutput(res.GetParam())
+			return clientCtx.PrintOutput(&res.Param)
 		},
 	}