[Request] Add BattleNet

[nitrocode]

https://www.blizzard.com/en-us/apps/battle.net/desktop

For some reason that link keeps failing. I found a direct link that was much faster, official, but it was posted on reddit. Anyone taking this ticket should try the first link first but if it has problems, the second link will definitely work.

https://www.reddit.com/r/Blizzard/comments/2fi64z/battlenet_direct_download_client/ http://dist.blizzard.com/downloads/bna-installers/322d5bb9ae0318de3d4cde7641c96425/retail.1/Battle.net-Setup-enUS.exe

[aj0413]

https://github.com/Ash258/Scoop-Ash258/blob/master/TODO/BattleNet.json

Seems someone is working on it; it's on the TODO table.

[Xelbayria]

I was going to add request for Battlenet. it seems that I don't have to add since this is already added.

[aliesbelik]

Available in games bucket, added in Calinou/scoop-games#1035.