Adding StarCraft to WinePak

[Isakku]

Changed icon and scripts, testing is required.
Followed @Saroufim instructions here
#116 (comment)
I'm no expert with Wine or Flatpak, this is my first pull request here.

[Isakku]

Add the correct icon https://us.shop.battle.net/static/3.2.1/images/family-icons/starcraft-remastered.svg

Lol, and that's the icon we are supposed to use? I really liked the Terran Wraith that SC1 had and I loved that new Wraith redesign they supplied with 1.16, but now they give us this bland SC letters... sigh OK, I'm doing it.

EDIT
Hmm. while we are at it, could you please tell me how do you test this? I mean, how do you test winepak scripts that are offline and were made by yourself with mostly possible horrific bugs without breaking your system (I already found a bug with SC2 winepak) #122
When I was editing it to make the SC1 script I noticed that it changes Wine graphics mode to opengl... I don't know why. Lutris SC2 install script does many other different things but nothing like that.

[Isakku]

There is really no way I can make this work if the code It is based on (StarCraft II Winepak) fails on my side (issue #122)