Move Item and Conversation from Core to Object

- Move BaseObject from Core\ to Friendica\

src/BaseObject.php

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