add cgpt framework and attribute support.

Review URL: http://codereview.chromium.org/2082015
diff --git a/cgptlib/tests/crc32_test.h b/cgptlib/tests/crc32_test.h
new file mode 100644
index 0000000..493d34e
--- /dev/null
+++ b/cgptlib/tests/crc32_test.h
@@ -0,0 +1,10 @@
+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef VBOOT_REFERENCE_CRC32_TEST_H_
+#define VBOOT_REFERENCE_CRC32_TEST_H_
+
+int TestCrc32TestVectors();
+
+#endif  /* VBOOT_REFERENCE_CRC32_TEST_H_ */