Build all ad extensions with amp-ad (#17291)
Build all ad extensions with amp-ad (#17291)

* build all ad extensions

* approach 2

* add comment

honeybadgerdontcare/amphtml,sebastianbenz/amphtml,erwinmombay/amphtml,jmadler/amphtml,pedjoni8/amphtml,kamtschatka/amphtml,chaveznvg/amphtml,aghassemi/amphtml,smartadserver/amphtml,cory-work/amphtml,zhangsu/amphtml,Gregable/amphtml,prateekbh/amphtml,src-code/amphtml,aghassemi/amphtml,yandex-pcode/amphtml,Gregable/amphtml,adup-tech/amphtml,voyagegroup/amphtml,alanorozco/amphtml,nexxtv/amphtml,cvializ/amphtml,BenDz/amphtml,taboola/amphtml,danielrozenberg/amphtml,zhangsu/amphtml,aghassemi/amphtml,voyagegroup/amphtml,honeybadgerdontcare/amphtml,mhc-gh/amphtml,chaveznvg/amphtml,jridgewell/amphtml,chaveznvg/amphtml,honeybadgerdontcare/amphtml,sharethrough/amphtml,jpettitt/amphtml,cory-work/amphtml,voyagegroup/amphtml,widespace-os/amphtml,src-code/amphtml,honeybadgerdontcare/amphtml,nexxtv/amphtml,dotandads/amphtml,cory-work/amphtml,erwinmombay/amphtml,cvializ/amphtml,sharethrough/amphtml,media-net/amphtml,rsimha-amp/amphtml,kamtschatka/amphtml,danielrozenberg/amphtml,jmadler/amphtml,cory-work/amphtml,erwinmombay/amphtml,src-code/amphtml,jridgewell/amphtml,dotandads/amphtml,koshka/amphtml,nexxtv/amphtml,koshka/amphtml,ampproject/amphtml,mhc-gh/amphtml,rsimha-amp/amphtml,prateekbh/amphtml,ampproject/amphtml,prateekbh/amphtml,koshka/amphtml,voyagegroup/amphtml,jridgewell/amphtml,zhangsu/amphtml,media-net/amphtml,sharethrough/amphtml,jpettitt/amphtml,tlong2/amphtml,chaveznvg/amphtml,dotandads/amphtml,koshka/amphtml,techhtml/amphtml,mhc-gh/amphtml,pedjoni8/amphtml,zhouyx/amphtml,lannka/amphtml,BenDz/amphtml,erwinmombay/amphtml,aghassemi/amphtml,kamtschatka/amphtml,zhouyx/amphtml,zhouyx/amphtml,lannka/amphtml,alanorozco/amphtml,BenDz/amphtml,lannka/amphtml,cvializ/amphtml,alanorozco/amphtml,jpettitt/amphtml,lannka/amphtml,src-code/amphtml,adup-tech/amphtml,sebastianbenz/amphtml,laterpay/amphtml,yieldbot/amphtml,techhtml/amphtml,laterpay/amphtml,jridgewell/amphtml,sharethrough/amphtml,aghassemi/amphtml,danielrozenberg/amphtml,tlong2/amphtml,ampproject/amphtml,nexxtv/amphtml,smartadserver/amphtml,jpettitt/amphtml,rsimha-amp/amphtml,aghassemi/amphtml,voyagegroup/amphtml,yandex-pcode/amphtml,taboola/amphtml,widespace-os/amphtml,honeybadgerdontcare/amphtml,laterpay/amphtml,cory-work/amphtml,mhc-gh/amphtml,prateekbh/amphtml,prateekbh/amphtml,koshka/amphtml,yandex-pcode/amphtml,danielrozenberg/amphtml,taboola/amphtml,ampproject/amphtml,sebastianbenz/amphtml,techhtml/amphtml,sebastianbenz/amphtml,kamtschatka/amphtml,koshka/amphtml,cvializ/amphtml,yandex-pcode/amphtml,erwinmombay/amphtml,voyagegroup/amphtml,dotandads/amphtml,adup-tech/amphtml,widespace-os/amphtml,jridgewell/amphtml,yandex-pcode/amphtml,Gregable/amphtml,jmadler/amphtml,sharethrough/amphtml,mhc-gh/amphtml,lannka/amphtml,kamtschatka/amphtml,lannka/amphtml,ampproject/amphtml,cory-work/amphtml,techhtml/amphtml,pedjoni8/amphtml,dotandads/amphtml,kamtschatka/amphtml,zhouyx/amphtml,zhangsu/amphtml,jpettitt/amphtml,zhouyx/amphtml,erwinmombay/amphtml,pedjoni8/amphtml,Gregable/amphtml,chaveznvg/amphtml,src-code/amphtml,rsimha-amp/amphtml,Gregable/amphtml,yieldbot/amphtml,alanorozco/amphtml,smartadserver/amphtml,smartadserver/amphtml,danielrozenberg/amphtml,mhc-gh/amphtml,jmadler/amphtml,jmadler/amphtml,lannka/amphtml,taboola/amphtml,pedjoni8/amphtml,sebastianbenz/amphtml,nexxtv/amphtml,zhangsu/amphtml,rsimha-amp/amphtml,media-net/amphtml,prateekbh/amphtml,tlong2/amphtml,zhouyx/amphtml,ampproject/amphtml,prateekbh/amphtml,media-net/amphtml,zhangsu/amphtml,jpettitt/amphtml,smartadserver/amphtml,taboola/amphtml,Gregable/amphtml,jridgewell/amphtml,mhc-gh/amphtml,adup-tech/amphtml,dotandads/amphtml,taboola/amphtml,alanorozco/amphtml,nexxtv/amphtml,widespace-os/amphtml,techhtml/amphtml,adup-tech/amphtml,ampproject/amphtml,danielrozenberg/amphtml,honeybadgerdontcare/amphtml,BenDz/amphtml,src-code/amphtml,laterpay/amphtml,tlong2/amphtml,tlong2/amphtml,jmadler/amphtml,widespace-os/amphtml,cvializ/amphtml,media-net/amphtml,jpettitt/amphtml,smartadserver/amphtml,alanorozco/amphtml,jridgewell/amphtml,Gregable/amphtml,honeybadgerdontcare/amphtml,laterpay/amphtml,yieldbot/amphtml,yandex-pcode/amphtml,BenDz/amphtml,yieldbot/amphtml,cvializ/amphtml,taboola/amphtml,cory-work/amphtml,sharethrough/amphtml,mhc-gh/amphtml,laterpay/amphtml,media-net/amphtml,danielrozenberg/amphtml,media-net/amphtml,media-net/amphtml,yieldbot/amphtml,alanorozco/amphtml,sebastianbenz/amphtml,pedjoni8/amphtml,Gregable/amphtml,voyagegroup/amphtml,yandex-pcode/amphtml,BenDz/amphtml,rsimha-amp/amphtml,jpettitt/amphtml,yieldbot/amphtml,ampproject/amphtml,widespace-os/amphtml,tlong2/amphtml,rsimha-amp/amphtml,zhouyx/amphtml,adup-tech/amphtml,nexxtv/amphtml,techhtml/amphtml,chaveznvg/amphtml,danielrozenberg/amphtml,alanorozco/amphtml