[TIMOB-7206] iOS: add support for map annotation bubble to be a custom view

Requesting the ability to use custom views for map annotation bubbles. I have attached an image to demonstrate what I mean.

File	Date	Size
CustomAnnotationView.PNG	2013-02-08T18:33:07.000+0000	174147
MapCalloutCompare.png	2012-01-16T10:54:08.000+0000	296242

Blain Hamon 2012-08-08

Marking invalid since Apple gives us no ability to do such. https://developer.apple.com/library/ios/#documentation/MapKit/Reference/MKAnnotationView_Class/Reference/Reference.html#//apple_ref/occ/cl/MKAnnotationView The Annotation view allows for a callout, its left view, its right view, and in the annotation class, a title and subtitle, but precious little else. In playing around, it is possible to set an annotation with a custom left view, and a title of " ".
Ingo Muschenetz 2013-03-25

Vishal to investigate
Alan Leard 2013-03-25

For reference, here is a link to the workaround, but there is still an issue with the standard annotation showing for a split second before being hidden, therefor looking like a glitch. https://github.com/AppceleratorSolutions/TitaniumProjects/tree/master/MapExtensions