Refactoring, t-sne, additional features
Refactoring, t-sne, additional features

Summary:
t-sne projection of instances activations
Minor refactorings

Reviewed By: Mortimerp9

Differential Revision: D4752784

fbshipit-source-id: f5cdb74616ab8e00f9ec362c0b94bcf7988e680e

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