[NaCl SDK] Copy test binaries from tests/data/* to lib/tests/data/*.

I'm separating this change from this CL
https://codereview.chromium.org/161613002/ so I can run on the trybots (they
still don't seem to work properly with binary files).

BUG=none
R=sbc@chromium.org

Review URL: https://codereview.chromium.org/175523004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252710 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252710