Add operator<< to hadamard test.
Add operator<< to hadamard test.

This quiets valgrind warning.

Change-Id: I7c5e23ebb91cc67cf93678135b826b2bc8e9db2f

webmproject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,webmproject/libvpx,webmproject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx