Added Schreibgebrauch meta data test suite for Duden

Change-Id: I4d4efb43bc13e962e45bedee6a424a909939f3bb
diff --git a/t/sgbr/PRO-DUD/header.xml b/t/sgbr/PRO-DUD/header.xml
new file mode 100644
index 0000000..1ceb692
--- /dev/null
+++ b/t/sgbr/PRO-DUD/header.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-model href="header.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+<!DOCTYPE idsCorpus PUBLIC "-//IDS//DTD IDS-XCES 1.0//EN" "http://corpora.ids-mannheim.de/idsxces1/DTD/ids.xcesdoc.dtd">
+<teiHeader>
+<korpusSigle>PRO-DUD</korpusSigle>
+</teiHeader>