AddDistributedBlobsSync
AddDistributedBlobsSync

Summary: Added a simple function to synchronize a blob across machines (but not across devices), i.e a blobs that are not synced over devices.

Reviewed By: yqwangustc

Differential Revision: D6192922

fbshipit-source-id: a4d653c9fb09f06b0c42330bdae07b42f5e6346c

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