[InAppBrowser] Including UserInfo Details in Error Callback (iOS)

If the UIWebview failed to load a request, it provides additional information about the failure in the form of "userInfo" in the error object.

Currently, the InAppBrowser plugin is not passing that "userInfo" details back to the callback function.

It would be helpful, if it pass this "userInfo" along with other existing basic details.

An example where we need userInfo object , Lets say We are loading a main HTML page which has many sub HTML page requests within the same and if anyone of the request gets failed, those failed sub-request URL request details will be available in "userInfo" object.