reconstruct ccTUI, add Button component

src/lib/ccTUI/UIObject.ts

@@ -0,0 +1,32 @@
+import { CCLog } from "../ccLog";
+
+export abstract class UIObject {
+  readonly objectName: string;
+  private parent?: UIObject;
+  private children: Record<string, UIObject> = {};
+
+  public log?: CCLog;
+
+  constructor(name: string, parent?: UIObject, log?: CCLog) {
+    this.objectName = name;
+    this.parent = parent;
+    this.log = log;
+  }
+
+  public setParent(parent: UIObject) {
+    this.parent = parent;
+    this.log ??= parent.log;
+  }
+
+  public addChild(child: UIObject) {
+    this.children[child.objectName] = child;
+  }
+
+  public removeChild(child: UIObject) {
+    Object.entries(this.children).forEach(([key, value]) => {
+      if (value === child) {
+        delete this.children[key];
+      }
+    });
+  }
+}