Add an example clover file.

Author: chrishalbert

tests/resources/clover-input.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<coverage generated="1479006233">
+    <project timestamp="1479006233">
+        <package name="package">
+            <file name="/home/user/package/subpackage/Foo.php">
+                <line num="1" type="stmt" count="0"/>
+                <line num="2" type="stmt" count="0"/>
+                <line num="3" type="stmt" count="0"/>
+            </file>
+            <file name="/home/user/package/subpackage/Bar.php">
+                <line num="4" type="stmt" count="0"/>
+                <line num="5" type="stmt" count="0"/>
+                <line num="6" type="stmt" count="0"/>
+            </file>
+        </package>
+    </project>
+</coverage>