Add missing issue template. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=122419424
Add missing issue template.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=122419424

androidx/media,google/ExoPlayer,amzn/exoplayer-amazon-port,ClubCom/AndroidExoPlayer,Ood-Tsen/ExoPlayer,JasonFengHot/ExoPlayerSource,michalliu/ExoPlayer,androidx/media,superbderrick/ExoPlayer,KiminRyu/ExoPlayer,MaTriXy/ExoPlayer,JasonFengHot/ExoPlayerSource,tntcrowd/ExoPlayer,stari4ek/ExoPlayer,JasonFengHot/ExoPlayerSource,kiall/ExoPlayer,ened/ExoPlayer,michalliu/ExoPlayer,KiminRyu/ExoPlayer,jeoliva/ExoPlayer,zhouweiguo2017/ExoPlayer,ebr11/ExoPlayer,MaTriXy/ExoPlayer,saki4510t/ExoPlayer,WeiChungChang/ExoPlayer,barbarian/ExoPlayer,rubensousa/exoplayer-amazon-port,stari4ek/ExoPlayer,jcable/ExoPlayer,kiall/ExoPlayer,jeoliva/ExoPlayer,ened/ExoPlayer,stari4ek/ExoPlayer,ebr11/ExoPlayer,google/ExoPlayer,jeoliva/ExoPlayer,YouKim/ExoPlayer,WeiChungChang/ExoPlayer,superbderrick/ExoPlayer,fanhattan/ExoPlayer,yangwuan55/ExoPlayer,tntcrowd/ExoPlayer,yangwuan55/ExoPlayer,YouKim/ExoPlayer,tntcrowd/ExoPlayer,saki4510t/ExoPlayer,ClubCom/AndroidExoPlayer,ebr11/ExoPlayer,WeiChungChang/ExoPlayer,zhouweiguo2017/ExoPlayer,KiminRyu/ExoPlayer,google/ExoPlayer,Ood-Tsen/ExoPlayer,amzn/exoplayer-amazon-port,zhouweiguo2017/ExoPlayer,barbarian/ExoPlayer,amzn/exoplayer-amazon-port,jcable/ExoPlayer,ened/ExoPlayer,kiall/ExoPlayer,Ood-Tsen/ExoPlayer,barbarian/ExoPlayer,jcable/ExoPlayer,androidx/media,ClubCom/AndroidExoPlayer,superbderrick/ExoPlayer,rubensousa/exoplayer-amazon-port,YouKim/ExoPlayer,fanhattan/ExoPlayer,fanhattan/ExoPlayer,MaTriXy/ExoPlayer,YouKim/ExoPlayer,saki4510t/ExoPlayer,rubensousa/exoplayer-amazon-port,michalliu/ExoPlayer,yangwuan55/ExoPlayer