Add setup.py to infra_libs

This is to allow creating a correct wheel out of it, for use with glyco
and in the future, possibly pip / PyPI.

BUG=626741
TBR=iannucci@chromium.org

Review-Url: https://codereview.chromium.org/2129103004
Cr-Mirrored-From: https://chromium.googlesource.com/infra/infra
Cr-Mirrored-Commit: 02a515dab9ac003e22daa2ff5cbde5b1cd0c45e1
1 file changed