Skip sparse tests if operators not available
Skip sparse tests if operators not available

Summary:
Only tests for SparseFunHash for now
Closes https://github.com/caffe2/caffe2/pull/60

Reviewed By: Yangqing

Differential Revision: D4348961

Pulled By: bwasti

fbshipit-source-id: cd05d73ccc711b42a7d33e7a6b65a9d1a9bfa7e6

davinwang/caffe2,xzturn/caffe2,Yangqing/caffe2,sf-wind/caffe2,pietern/caffe2,Yangqing/caffe2,xzturn/caffe2,davinwang/caffe2,Yangqing/caffe2,pietern/caffe2,bwasti/caffe2,sf-wind/caffe2,davinwang/caffe2,pietern/caffe2,pietern/caffe2,xzturn/caffe2,pietern/caffe2,Yangqing/caffe2,sf-wind/caffe2,bwasti/caffe2,xzturn/caffe2,caffe2/caffe2,davinwang/caffe2,sf-wind/caffe2,xzturn/caffe2,Yangqing/caffe2,bwasti/caffe2,bwasti/caffe2,bwasti/caffe2,sf-wind/caffe2,davinwang/caffe2