implement generic YEvent with path property

src/Type/YArray.js

@@ -1,10 +1,11 @@
 import Type from '../Struct/Type.js'
 import ItemJSON from '../Struct/ItemJSON.js'
 import { logID } from '../MessageHandler/messageToString.js'
+import YEvent from '../Util/YEvent.js'
 
-class YArrayEvent {
+class YArrayEvent extends YEvent {
   constructor (yarray, remote) {
-    this.target = yarray
+    super(yarray)
     this.remote = remote
   }
 }

src/Type/YMap.js

@@ -2,10 +2,11 @@ import Type from '../Struct/Type.js'
 import Item from '../Struct/Item.js'
 import ItemJSON from '../Struct/ItemJSON.js'
 import { logID } from '../MessageHandler/messageToString.js'
+import YEvent from '../Util/YEvent.js'
 
-class YMapEvent {
+class YMapEvent extends YEvent {
   constructor (ymap, subs, remote) {
-    this.target = ymap
+    super(ymap)
     this.keysChanged = subs
     this.remote = remote
   }

src/Type/y-xml/YXmlEvent.js

@@ -1,7 +1,8 @@
+import YEvent from '../../Util/YEvent.js'
 
-export default class YXmlEvent {
+export default class YXmlEvent extends YEvent {
   constructor (target, subs, remote) {
-    this.target = target
+    super(target)
     this.childListChanged = false
     this.attributesChanged = new Set()
     this.remote = remote