See how Boundary would look with gofumpt applied (#853)

* See how Boundary would look with https://github.com/mvdan/gofumpt applied

Results of running `gofumpt -w -s .`

* Update tools file and Makefile for gofumpt

Co-authored-by: Jeff Mitchell <jeffrey.mitchell@gmail.com>

internal/gen/controller/api/services/host_service_grpc.pb.go

@@ -4,6 +4,7 @@ package services
 
 import (
 	context "context"
+
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
@@ -136,21 +137,24 @@ type HostServiceServer interface {
 }
 
 // UnimplementedHostServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedHostServiceServer struct {
-}
+type UnimplementedHostServiceServer struct{}
 
 func (UnimplementedHostServiceServer) GetHost(context.Context, *GetHostRequest) (*GetHostResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetHost not implemented")
 }
+
 func (UnimplementedHostServiceServer) ListHosts(context.Context, *ListHostsRequest) (*ListHostsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ListHosts not implemented")
 }
+
 func (UnimplementedHostServiceServer) CreateHost(context.Context, *CreateHostRequest) (*CreateHostResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method CreateHost not implemented")
 }
+
 func (UnimplementedHostServiceServer) UpdateHost(context.Context, *UpdateHostRequest) (*UpdateHostResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method UpdateHost not implemented")
 }
+
 func (UnimplementedHostServiceServer) DeleteHost(context.Context, *DeleteHostRequest) (*DeleteHostResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method DeleteHost not implemented")
 }