- Move examples to their own directory

diff --git a/ext/simplexml/book.php b/ext/simplexml/examples/book.php
similarity index 100%
rename from ext/simplexml/book.php
rename to ext/simplexml/examples/book.php

diff --git a/ext/simplexml/book.xml b/ext/simplexml/examples/book.xml
similarity index 100%
rename from ext/simplexml/book.xml
rename to ext/simplexml/examples/book.xml