Fix issue with bridging header not importing KIF properly

The issue was that KIF was imported as an Objective=C header, but built by cocapods as a framework. Because of this the header couldn't find it.

Author: mokagio

BenchKIFSwift/BenchKIFSwift-Bridging-Header.h

@@ -1 +1 @@
-#import <KIF/KIF.h>
+@import KIF;