Add a sample user for the svndump library

The svn-fe tool takes a Subversion dump file as input and produces
a fast-import stream as output.  This can be useful as a low-level
tool in building other importers, or for debugging the vcs-svn
library.

 make svn-fe
 make svn-fe.1

to test.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/contrib/svn-fe/svn-fe.c b/contrib/svn-fe/svn-fe.c
new file mode 100644
index 0000000..43c4320
--- /dev/null
+++ b/contrib/svn-fe/svn-fe.c
@@ -0,0 +1,15 @@
+/*
+ * This file is in the public domain.
+ * You may freely use, modify, distribute, and relicense it.
+ */
+
+#include <stdlib.h>
+#include "vcs-svn/svndump.h"
+
+int main(int argc, char **argv)
+{
+	svndump_init(NULL);
+	svndump_read((argc > 1) ? argv[1] : NULL);
+	svndump_reset();
+	return 0;
+}