Move Item and Conversation from Core to Object

- Move BaseObject from Core\ to Friendica\

src/Core/BaseObject.php

@@ -1,47 +0,0 @@
-<?php
-/**
- * @file src/Core/BaseObject.php
- */
-namespace Friendica\Core;
-
-require_once 'boot.php';
-
-/**
- * Basic object
- *
- * Contains what is useful to any object
- */
-class BaseObject
-{
-	private static $app = null;
-
-	/**
-	 * Get the app
-	 *
-	 * Same as get_app from boot.php
-	 *
-	 * @return object
-	 */
-	public function getApp()
-	{
-		if (self::$app) {
-			return self::$app;
-		}
-
-		self::$app = boot::get_app();
-
-		return self::$app;
-	}
-
-	/**
-	 * Set the app
-	 *
-	 * @param object $app App
-	 *
-	 * @return void
-	 */
-	public static function setApp($app)
-	{
-		self::$app = $app;
-	}
-}