feat: implement fx.NoneMatch, fx.First, fx.Last (#1402)

* chore: use workers from options in fx.unlimitedWalk

* feat: add fx.NoneMatch

* feat: add fx.First, fx.Last

* chore: add more comments

* docs: add mr readme

zrpc/server_test.go

@@ -43,7 +43,7 @@ func TestServer(t *testing.T) {
 				Mode:        "console",
 			},
 		},
-		ListenOn:      ":8080",
+		ListenOn:      "localhost:8080",
 		Etcd:          discov.EtcdConf{},
 		Auth:          false,
 		Redis:         redis.RedisKeyConf{},
@@ -67,7 +67,7 @@ func TestServerError(t *testing.T) {
 				Mode:        "console",
 			},
 		},
-		ListenOn: ":8080",
+		ListenOn: "localhost:8080",
 		Etcd: discov.EtcdConf{
 			Hosts: []string{"localhost"},
 		},
@@ -86,7 +86,7 @@ func TestServer_HasEtcd(t *testing.T) {
 				Mode:        "console",
 			},
 		},
-		ListenOn: ":8080",
+		ListenOn: "localhost:8080",
 		Etcd: discov.EtcdConf{
 			Hosts: []string{"notexist"},
 			Key:   "any",