This commit adds `ImageUtil::resizeCanvas`, `ImageUtil::outlineImage`, and `ImageUtil::fillImage`, and applies these functions to the clan manager to replace the clan rank images with calls to `SpriteManager`.
This commit adds `ImageUtil::resizeCanvas`, `ImageUtil::outlineImage`, and `ImageUtil::fillImage`, and applies these functions to the clan manager to replace the clan rank images with calls to `SpriteManager`.