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>

api/sessions/session.gen.go

@@ -65,8 +65,10 @@ func (n SessionReadResult) GetResponseMap() map[string]interface{} {
 	return n.response.Map
 }
 
-type SessionCreateResult = SessionReadResult
-type SessionUpdateResult = SessionReadResult
+type (
+	SessionCreateResult = SessionReadResult
+	SessionUpdateResult = SessionReadResult
+)
 
 type SessionDeleteResult struct {
 	response *api.Response