Move examples into the test fixtures.

test/fixtures/examples/utf8_unescaped/UTF8Unescaped.php

@@ -0,0 +1,5 @@
+<?php
+
+class UTF8Unescaped {
+	public $test = '中文又来啦';
+}

test/fixtures/examples/utf8_unescaped/utf8_unescaped.mustache

@@ -0,0 +1 @@
+<h1>中文 {{{test}}}</h1>

test/fixtures/examples/utf8_unescaped/utf8_unescaped.txt

@@ -0,0 +1 @@
+<h1>中文 中文又来啦</h1>