specify new delegates on fullscreen lifecycle

Author: elneruda

README.md

@@ -172,7 +172,7 @@ extension <#YOURViewController#>: TeadsAdDelegate {
         <#your view height#> = 0
     }
 
-    func didCloseAd(ad: TeadsAd) {
+    func didClose(ad: TeadsAd) {
         //here you should hide your ad view
         <#your view height#> = 0
     }
@@ -185,6 +185,14 @@ extension <#YOURViewController#>: TeadsAdDelegate {
        //you may want to use this callback for your own analytics
     }
 
+    func didExpandedToFullscreen(ad: TeadsAd) {
+       //you may want to use this callback for your own analytics
+    }
+    
+    func didCollapsedFromFullscreen(ad: TeadsAd) {
+       //you may want to use this callback for your own analytics
+    }
+    
 }
 ```