Added affinity and other algorithms
Added affinity and other algorithms

thirdwing/mlpack,BookChan/mlpack,palashahuja/mlpack,Azizou/mlpack,BookChan/mlpack,chenmoshushi/mlpack,stereomatchingkiss/mlpack,minhpqn/mlpack,trungda/mlpack,thirdwing/mlpack,minhpqn/mlpack,theranger/mlpack,bmswgnp/mlpack,stereomatchingkiss/mlpack,ranjan1990/mlpack,erubboli/mlpack,theranger/mlpack,chenmoshushi/mlpack,ranjan1990/mlpack,lezorich/mlpack,darcyliu/mlpack,Azizou/mlpack,ajjl/mlpack,erubboli/mlpack,theranger/mlpack,ranjan1990/mlpack,trungda/mlpack,darcyliu/mlpack,stereomatchingkiss/mlpack,darcyliu/mlpack,thirdwing/mlpack,ajjl/mlpack,erubboli/mlpack,trungda/mlpack,ersanliqiao/mlpack,ersanliqiao/mlpack,palashahuja/mlpack,BookChan/mlpack,Azizou/mlpack,datachand/mlpack,bmswgnp/mlpack,datachand/mlpack,lezorich/mlpack,bmswgnp/mlpack,chenmoshushi/mlpack,palashahuja/mlpack,ajjl/mlpack,minhpqn/mlpack,datachand/mlpack,ersanliqiao/mlpack,lezorich/mlpack