Add search path for FIAM resource bundle since it will be embedded

Author: ncooke3

FirebaseInAppMessaging/Sources/DefaultUI/FIRIAMDefaultDisplayImpl.m

@@ -67,7 +67,15 @@ + (NSBundle *)getViewResourceBundle {
     NSBundle *containingBundle;
     NSURL *bundleURL;
     // The containing bundle is different whether FIAM is statically or dynamically linked.
-    for (containingBundle in @[ [NSBundle mainBundle], [NSBundle bundleForClass:myClass] ]) {
+    for (containingBundle in @[
+           // Statically linked.
+           [NSBundle mainBundle],
+           // Dynamically linked.
+           [NSBundle bundleForClass:myClass],
+           // Embedded static framework (zip distribution).
+           [[NSBundle.mainBundle.bundleURL URLByAppendingPathComponent:@"Frameworks"]
+               URLByAppendingPathComponent:@"FirebaseInAppMessaging.framework"]
+         ]) {
       bundleURL = [containingBundle URLForResource:bundledResource withExtension:@"bundle"];
       if (bundleURL != nil) break;
     }