Resolves issue https://github.com/MortimerGoro/MGSwipeTableCell/issues/363, "Visual glitch/flash on refreshContentView() while cell is swiped open". Specifically, the older "- (BOOL)drawViewHierarchyInRect:(CGRect)rect afterScreenUpdates:(BOOL)afterUpdates" with UIGraphicsBeginImageContextWithOptions causes the user's screen to redraw in order to make the latest content available, which is used to create an snapshot image of the content view, which is displayed instead of the content view whenever the swipe is open.  Changed to use UIGraphicsRenderer and - (void)renderInContext:(CGContextRef)ctx;
Resolves issue https://github.com/MortimerGoro/MGSwipeTableCell/issues/363, "Visual glitch/flash on refreshContentView() while cell is swiped open".
Specifically, the older "- (BOOL)drawViewHierarchyInRect:(CGRect)rect afterScreenUpdates:(BOOL)afterUpdates" with UIGraphicsBeginImageContextWithOptions causes the user's screen to redraw in order to make the latest content available, which is used to create an snapshot image of the content view, which is displayed instead of the content view whenever the swipe is open.  Changed to use UIGraphicsRenderer and - (void)renderInContext:(CGContextRef)ctx;

MortimerGoro/MGSwipeTableCell,MortimerGoro/MGSwipeTableCell