Add release notes for FIAM M49 (#3099)

* Add release notes for FIAM M49

* Add PR numbers for release notes

Author: christibbs

Firebase/InAppMessaging/CHANGELOG.md

@@ -1,3 +1,7 @@
+# 2019-06-04 -- v0.15.0
+- Added support for card in-app messages (#2947).
+- Added direct triggering (via FIAM SDK) of in-app messages (#3081).
+
 # 2019-05-21 -- v0.14.1
 - Fixed an issue with messages not showing up from custom analytics event trigger (#2981).
 - Fixed crash from sending analytics events with no instance ID (#2988).

Firebase/InAppMessagingDisplay/CHANGELOG.md

@@ -1,3 +1,7 @@
+# 2019-06-04 -- v0.15.0
+- Added support for card in-app messages (#2947).
+- Added direct triggering (via FIAM SDK) of in-app messages (#3081).
+
 # 2019-03-19 -- v0.13.1
 - Fixed a crash (#2498) that occurred when integrating In-App Messaging into NativeScript apps.