Add @since annotation and add missing new line

Signed-off-by: Tobia De Koninck <tobia@ledfan.be>

lib/public/Contacts/ContactsMenu/IContactsStore.php

@@ -4,6 +4,9 @@ namespace OCP\Contacts\ContactsMenu;
 
 use OCP\IUser;
 
+/**
+ * @since 13.0.0
+ */
 interface IContactsStore {
 
 
@@ -11,6 +14,7 @@ interface IContactsStore {
 	 * @param IUser $user
 	 * @param $filter
 	 * @return IEntry[]
+	 * @since 13.0.0
 	 */
 	public function getContacts(IUser $user, $filter);
 
@@ -20,7 +24,8 @@ interface IContactsStore {
 	 * @param integer $shareType
 	 * @param string $shareWith
 	 * @return IEntry|null
+	 * @since 13.0.0
 	 */
 	public function findOne(IUser $user, $shareType, $shareWith);
 
-}
+}