nomasystems/nimagefetch-ios

Change NImageFetchViewDelegate for a completion

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We must refactor NImageFetchView to use a completion instead this protocol:

@protocol NImageFetchViewDelegate <NSObject>

@optional

/** Called when the requested image has been loaded and set on the image view */
- (void)imageViewDidSetRequestedImage:(NImageFetchView*)imageView;

/** Called if the image request failed */
- (void)imageView:(NImageFetchView*)imageView requestFailedWithError:(NSError*)error;

@end

If you don't mind I will start it