get vfsStream via composer if its PEAR package not exists
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..fa6dc02
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "mikey179/vfsStream": "*"
+    }
+}
\ No newline at end of file