add resnet50_v2 pretrained (#7564)
add resnet50_v2 pretrained (#7564)


tornadomeet/mxnet,navrasio/mxnet,reminisce/mxnet,yajiedesign/mxnet,mbaijal/incubator-mxnet,jennyzhang0215/incubator-mxnet,dmlc/mxnet,tornadomeet/mxnet,hpi-xnor/BMXNet,madjam/mxnet,smolix/incubator-mxnet,antoan2/incubator-mxnet,piiswrong/mxnet,LinkHS/incubator-mxnet,gautamkmr/incubator-mxnet,sxjscience/mxnet,sxjscience/mxnet,formath/mxnet,weleen/mxnet,dmlc/mxnet,precedenceguo/mxnet,jennyzhang0215/incubator-mxnet,CodingCat/mxnet,saurabh3949/mxnet,kkk669/mxnet,CodingCat/mxnet,mbaijal/incubator-mxnet,luoyetx/mxnet,jermainewang/mxnet,smolix/incubator-mxnet,szha/mxnet,yajiedesign/mxnet,sxjscience/mxnet,mbaijal/incubator-mxnet,eric-haibin-lin/mxnet,Prasad9/incubator-mxnet,zhreshold/mxnet,zhreshold/mxnet,fullfanta/mxnet,saurabh3949/mxnet,yajiedesign/mxnet,LinkHS/incubator-mxnet,rahul003/mxnet,Northrend/mxnet,crazy-cat/incubator-mxnet,szha/mxnet,ptrendx/mxnet,indhub/mxnet,TuSimple/mxnet,wangyum/mxnet,hpi-xnor/BMXNet,zhreshold/mxnet,Prasad9/incubator-mxnet,larroy/mxnet,hpi-xnor/BMXNet,jermainewang/mxnet,jamesliu/mxnet,szha/mxnet,reminisce/mxnet,larroy/mxnet,navrasio/mxnet,ptrendx/mxnet,smolix/incubator-mxnet,vikingMei/mxnet,precedenceguo/mxnet,vikingMei/mxnet,jermainewang/mxnet,vikingMei/mxnet,dmlc/mxnet,fullfanta/mxnet,jennyzhang0215/incubator-mxnet,stefanhenneking/mxnet,luoyetx/mxnet,kevinthesun/mxnet,ForkedReposBak/mxnet,luoyetx/mxnet,kevinthesun/mxnet,leezu/mxnet,Northrend/mxnet,tlby/mxnet,jennyzhang0215/incubator-mxnet,nicklhy/mxnet,jiajiechen/mxnet,jamesliu/mxnet,indhub/mxnet,jamesliu/mxnet,apache/incubator-mxnet,jamesliu/mxnet,LinkHS/incubator-mxnet,saurabh3949/mxnet,ZihengJiang/mxnet,piiswrong/mxnet,piiswrong/mxnet,reminisce/mxnet,tornadomeet/mxnet,Mega-DatA-Lab/mxnet,formath/mxnet,tlby/mxnet,ForkedReposBak/mxnet,Prasad9/incubator-mxnet,yuruofeifei/mxnet,vikingMei/mxnet,TuSimple/mxnet,TuSimple/mxnet,szha/mxnet,madjam/mxnet,jamesliu/mxnet,zhreshold/mxnet,ptrendx/mxnet,hpi-xnor/BMXNet,precedenceguo/mxnet,leezu/mxnet,Northrend/mxnet,jiajiechen/mxnet,saurabh3949/mxnet,formath/mxnet,nicklhy/mxnet,navrasio/mxnet,TuSimple/mxnet,sxjscience/mxnet,szha/mxnet,tlby/mxnet,solin319/incubator-mxnet,CodingCat/mxnet,fullfanta/mxnet,jamesliu/mxnet,tornadomeet/mxnet,gautamkmr/incubator-mxnet,piiswrong/mxnet,reminisce/mxnet,nicklhy/mxnet,wangyum/mxnet,jiajiechen/mxnet,piiswrong/mxnet,rahul003/mxnet,ForkedReposBak/mxnet,Northrend/mxnet,jamesliu/mxnet,reminisce/mxnet,antoan2/incubator-mxnet,wangyum/mxnet,dmlc/mxnet,yajiedesign/mxnet,stefanhenneking/mxnet,dmlc/mxnet,madjam/mxnet,formath/mxnet,Mega-DatA-Lab/mxnet,ShownX/incubator-mxnet,wangyum/mxnet,larroy/mxnet,larroy/mxnet,weleen/mxnet,ShownX/incubator-mxnet,wangyum/mxnet,LinkHS/incubator-mxnet,kkk669/mxnet,saurabh3949/mxnet,jiajiechen/mxnet,dmlc/mxnet,ZihengJiang/mxnet,weleen/mxnet,indhub/mxnet,hpi-xnor/BMXNet,yajiedesign/mxnet,yuruofeifei/mxnet,tlby/mxnet,sergeykolychev/mxnet,indhub/mxnet,rahul003/mxnet,Prasad9/incubator-mxnet,precedenceguo/mxnet,smolix/incubator-mxnet,TuSimple/mxnet,solin319/incubator-mxnet,nicklhy/mxnet,luoyetx/mxnet,tlby/mxnet,kevinthesun/mxnet,sergeykolychev/mxnet,crazy-cat/incubator-mxnet,reminisce/mxnet,ZihengJiang/mxnet,ShownX/incubator-mxnet,wangyum/mxnet,yuruofeifei/mxnet,leezu/mxnet,Prasad9/incubator-mxnet,ykim362/mxnet,solin319/incubator-mxnet,jiajiechen/mxnet,sxjscience/mxnet,ykim362/mxnet,eric-haibin-lin/mxnet,szha/mxnet,antoan2/incubator-mxnet,CodingCat/mxnet,formath/mxnet,ptrendx/mxnet,formath/mxnet,Mega-DatA-Lab/mxnet,weleen/mxnet,ptrendx/mxnet,sergeykolychev/mxnet,TuSimple/mxnet,tornadomeet/mxnet,zhreshold/mxnet,stefanhenneking/mxnet,sxjscience/mxnet,vikingMei/mxnet,solin319/incubator-mxnet,indhub/mxnet,kkk669/mxnet,formath/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,luoyetx/mxnet,navrasio/mxnet,hpi-xnor/BMXNet,yuruofeifei/mxnet,rahul003/mxnet,stefanhenneking/mxnet,indhub/mxnet,kevinthesun/mxnet,vikingMei/mxnet,nicklhy/mxnet,yajiedesign/mxnet,sergeykolychev/mxnet,zhreshold/mxnet,formath/mxnet,luoyetx/mxnet,nicklhy/mxnet,navrasio/mxnet,tlby/mxnet,nicklhy/mxnet,ZihengJiang/mxnet,vikingMei/mxnet,ykim362/mxnet,yuruofeifei/mxnet,Mega-DatA-Lab/mxnet,navrasio/mxnet,sxjscience/mxnet,szha/mxnet,piiswrong/mxnet,kevinthesun/mxnet,mbaijal/incubator-mxnet,yuruofeifei/mxnet,crazy-cat/incubator-mxnet,Prasad9/incubator-mxnet,yuruofeifei/mxnet,antoan2/incubator-mxnet,gautamkmr/incubator-mxnet,Northrend/mxnet,TuSimple/mxnet,madjam/mxnet,vikingMei/mxnet,piiswrong/mxnet,madjam/mxnet,Mega-DatA-Lab/mxnet,antoan2/incubator-mxnet,saurabh3949/mxnet,rahul003/mxnet,mbaijal/incubator-mxnet,leezu/mxnet,eric-haibin-lin/mxnet,leezu/mxnet,navrasio/mxnet,fullfanta/mxnet,tornadomeet/mxnet,jamesliu/mxnet,ForkedReposBak/mxnet,crazy-cat/incubator-mxnet,ptrendx/mxnet,jermainewang/mxnet,jiajiechen/mxnet,crazy-cat/incubator-mxnet,jermainewang/mxnet,jennyzhang0215/incubator-mxnet,gautamkmr/incubator-mxnet,antoan2/incubator-mxnet,fullfanta/mxnet,eric-haibin-lin/mxnet,formath/mxnet,ykim362/mxnet,jennyzhang0215/incubator-mxnet,DickJC123/mxnet,apache/incubator-mxnet,hpi-xnor/BMXNet,jiajiechen/mxnet,ykim362/mxnet,zhreshold/mxnet,madjam/mxnet,wangyum/mxnet,apache/incubator-mxnet,solin319/incubator-mxnet,jermainewang/mxnet,reminisce/mxnet,jennyzhang0215/incubator-mxnet,ForkedReposBak/mxnet,rahul003/mxnet,dmlc/mxnet,saurabh3949/mxnet,stefanhenneking/mxnet,dmlc/mxnet,ptrendx/mxnet,weleen/mxnet,ZihengJiang/mxnet,smolix/incubator-mxnet,Northrend/mxnet,stefanhenneking/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,navrasio/mxnet,LinkHS/incubator-mxnet,zhreshold/mxnet,CodingCat/mxnet,wangyum/mxnet,Prasad9/incubator-mxnet,gautamkmr/incubator-mxnet,sergeykolychev/mxnet,precedenceguo/mxnet,DickJC123/mxnet,kkk669/mxnet,hpi-xnor/BMXNet,jiajiechen/mxnet,DickJC123/mxnet,sergeykolychev/mxnet,wangyum/mxnet,ShownX/incubator-mxnet,sergeykolychev/mxnet,ykim362/mxnet,eric-haibin-lin/mxnet,kkk669/mxnet,kkk669/mxnet,weleen/mxnet,larroy/mxnet,mbaijal/incubator-mxnet,jermainewang/mxnet,gautamkmr/incubator-mxnet,mbaijal/incubator-mxnet,reminisce/mxnet,gautamkmr/incubator-mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,tornadomeet/mxnet,stefanhenneking/mxnet,saurabh3949/mxnet,solin319/incubator-mxnet,jermainewang/mxnet,jamesliu/mxnet,kkk669/mxnet,luoyetx/mxnet,Mega-DatA-Lab/mxnet,Northrend/mxnet,ForkedReposBak/mxnet,gautamkmr/incubator-mxnet,TuSimple/mxnet,yajiedesign/mxnet,crazy-cat/incubator-mxnet,TuSimple/mxnet,larroy/mxnet,stefanhenneking/mxnet,smolix/incubator-mxnet,indhub/mxnet,ShownX/incubator-mxnet,crazy-cat/incubator-mxnet,ptrendx/mxnet,indhub/mxnet,ShownX/incubator-mxnet,leezu/mxnet,tornadomeet/mxnet,kevinthesun/mxnet,nicklhy/mxnet,ptrendx/mxnet,Mega-DatA-Lab/mxnet,larroy/mxnet,ykim362/mxnet,madjam/mxnet,Northrend/mxnet,DickJC123/mxnet,precedenceguo/mxnet,CodingCat/mxnet,luoyetx/mxnet,TuSimple/mxnet,eric-haibin-lin/mxnet,jiajiechen/mxnet,mbaijal/incubator-mxnet,tornadomeet/mxnet,antoan2/incubator-mxnet,jennyzhang0215/incubator-mxnet,fullfanta/mxnet,LinkHS/incubator-mxnet,ShownX/incubator-mxnet,ZihengJiang/mxnet,weleen/mxnet,rahul003/mxnet,kevinthesun/mxnet,saurabh3949/mxnet,ZihengJiang/mxnet,larroy/mxnet,piiswrong/mxnet,CodingCat/mxnet,sxjscience/mxnet,sergeykolychev/mxnet,smolix/incubator-mxnet,ForkedReposBak/mxnet,fullfanta/mxnet,jennyzhang0215/incubator-mxnet,smolix/incubator-mxnet,rahul003/mxnet,smolix/incubator-mxnet,weleen/mxnet,reminisce/mxnet,precedenceguo/mxnet,LinkHS/incubator-mxnet,yajiedesign/mxnet,Prasad9/incubator-mxnet,antoan2/incubator-mxnet,jermainewang/mxnet,tlby/mxnet,sergeykolychev/mxnet,fullfanta/mxnet,piiswrong/mxnet,nicklhy/mxnet,kkk669/mxnet,rahul003/mxnet,tlby/mxnet,ZihengJiang/mxnet,yuruofeifei/mxnet,ForkedReposBak/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,Mega-DatA-Lab/mxnet,fullfanta/mxnet,ptrendx/mxnet,Northrend/mxnet,gautamkmr/incubator-mxnet,indhub/mxnet,precedenceguo/mxnet,eric-haibin-lin/mxnet,crazy-cat/incubator-mxnet,kkk669/mxnet,precedenceguo/mxnet,Mega-DatA-Lab/mxnet,larroy/mxnet,szha/mxnet,solin319/incubator-mxnet,reminisce/mxnet,mbaijal/incubator-mxnet,leezu/mxnet,szha/mxnet,hpi-xnor/BMXNet,ykim362/mxnet,madjam/mxnet,kevinthesun/mxnet,leezu/mxnet,crazy-cat/incubator-mxnet,ykim362/mxnet,eric-haibin-lin/mxnet,luoyetx/mxnet,Prasad9/incubator-mxnet,solin319/incubator-mxnet,vikingMei/mxnet,zhreshold/mxnet,solin319/incubator-mxnet,leezu/mxnet,stefanhenneking/mxnet,ShownX/incubator-mxnet,dmlc/mxnet,weleen/mxnet,CodingCat/mxnet,tlby/mxnet,LinkHS/incubator-mxnet,navrasio/mxnet,apache/incubator-mxnet,madjam/mxnet,tlby/mxnet,antoan2/incubator-mxnet,ShownX/incubator-mxnet,kevinthesun/mxnet