Adding old unit tests to test suite.

These tests are copied straight over. They'll still run, but they're
using the old system.

Change-Id: If494519e52ddf858a9febfc55bdae830468cb3c8
diff --git a/test/070-nio-buffer/info.txt b/test/070-nio-buffer/info.txt
new file mode 100644
index 0000000..761714e
--- /dev/null
+++ b/test/070-nio-buffer/info.txt
@@ -0,0 +1 @@
+Exercise NIO buffers (e.g. java.nio.ByteBuffer).