feat: Add cookie support for iOS. (DylanVann#284)

BREAKING CHANGE: This changes how network requests are handled on iOS. Make sure they still work for you.

ios/FastImage/FFFastImageView.m

@@ -147,7 +147,7 @@ - (void)reloadImage
         }];
 
         // Set priority.
-        SDWebImageOptions options = SDWebImageRetryFailed;
+        SDWebImageOptions options = SDWebImageRetryFailed | SDWebImageHandleCookies;
         switch (_source.priority) {
             case FFFPriorityLow:
                 options |= SDWebImageLowPriority;