Add gsutil/third_party to telemetry/third_party/gsutilz/third_party.

tools/telemetry/third_party/gsutilz/third_party/pyasn1/test/codec/der/test_decoder.py

Index: tools/telemetry/third_party/gsutilz/third_party/pyasn1/test/codec/der/test_decoder.py
diff --git a/tools/telemetry/third_party/gsutilz/third_party/pyasn1/test/codec/der/test_decoder.py b/tools/telemetry/third_party/gsutilz/third_party/pyasn1/test/codec/der/test_decoder.py
new file mode 100644
index 0000000000000000000000000000000000000000..5c9a1948b993b39a89a9cc4fa0547910663ec8c3
--- /dev/null
+++ b/tools/telemetry/third_party/gsutilz/third_party/pyasn1/test/codec/der/test_decoder.py
@@ -0,0 +1,20 @@
+from pyasn1.type import univ
+from pyasn1.codec.der import decoder
+from pyasn1.error import PyAsn1Error
+from sys import version_info
+if version_info[0:2] < (2, 7) or \
+   version_info[0:2] in ( (3, 0), (3, 1) ):
+    try:
+        import unittest2 as unittest
+    except ImportError:
+        import unittest
+else:
+    import unittest
+
+class OctetStringDecoderTestCase(unittest.TestCase):
+    def testShortMode(self):
+        assert decoder.decode(
+            '\004\017Quick brown fox'.encode()
+            ) == ('Quick brown fox'.encode(), ''.encode())
+
+if __name__ == '__main__': unittest.main()