Fix to #360 - Updated the general generator (Java/C#) to emit fully qualified names where the referenced object isn't directly in this namespace. Added test fbs files to verify compilation.

tests/namespace_test/NamespaceA/NamespaceB/EnumInNestedNS.php

@@ -0,0 +1,25 @@
+<?php
+// automatically generated, do not modify
+
+namespace NamespaceA\NamespaceB;
+
+class EnumInNestedNS
+{
+    const A = 0;
+    const B = 1;
+    const C = 2;
+
+    private static $names = array(
+        "A",
+        "B",
+        "C",
+    );
+
+    public static function Name($e)
+    {
+        if (!isset(self::$names[$e])) {
+            throw new \Exception();
+        }
+        return self::$names[$e];
+    }
+}