Add the migration for friends and guard the presence Report function

OpenSim/Data/MySQL/Resources/001_Friends.sql

@@ -0,0 +1,9 @@
+BEGIN;
+
+CREATE TABLE `Friends` (
+    `PrincipalID` CHAR(36) NOT NULL,
+    `FriendID` VARCHAR(255) NOT NULL,
+    `Flags` CHAR(16) NOT NULL DEFAULT '0'
+) ENGINE=InnoDB;
+
+COMMIT;