Add todoapp benchmark

bench/implementations/angular-2/app/services/store.ts

@@ -0,0 +1,62 @@
+export class Todo {
+	completed: Boolean;
+	editing: Boolean;
+
+	private _title: String;
+	get title() {
+		return this._title;
+	}
+	set title(value: String) {
+		this._title = value.trim();
+	}
+
+	constructor(title: String) {
+		this.completed = false;
+		this.editing = false;
+		this.title = title.trim();
+	}
+}
+
+export class TodoStore {
+	todos: Array<Todo>;
+
+	constructor() {
+		this.todos = [];
+	}
+
+	private getWithCompleted(completed: Boolean) {
+		return this.todos.filter((todo: Todo) => todo.completed === completed);
+	}
+
+	allCompleted() {
+		return this.todos.length === this.getCompleted().length;
+	}
+
+	setAllTo(completed: Boolean) {
+		this.todos.forEach((t: Todo) => t.completed = completed);
+	}
+
+	removeCompleted() {
+		this.todos = this.getWithCompleted(false);
+	}
+
+	getRemaining() {
+		return this.getWithCompleted(false);
+	}
+
+	getCompleted() {
+		return this.getWithCompleted(true);
+	}
+
+	toggleCompletion(todo: Todo) {
+		todo.completed = !todo.completed;
+	}
+
+	remove(todo: Todo) {
+		this.todos.splice(this.todos.indexOf(todo), 1);
+	}
+
+	add(title: String) {
+		this.todos.push(new Todo(title));
+	}
+}