[fix/intents-memory] Fix forced termination of Intents due to exceeded memory limit (#1514)

* - ownCloud Intents/Info.plist: add app component identifier for intents extension
- ios-sdk: update SDK to automatically pick the minimum memory configuration when loaded into the Intents extension

* - update ios-sdk reference to master with merged in fix/intents-minmem

Author: felix-schwarz

ios-sdk

@@ -54,6 +54,8 @@
 	<true/>
 	<key>OCKeychainAccessGroupIdentifier</key>
 	<string>group.com.owncloud.ios-app</string>
+	<key>OCAppComponentIdentifier</key>
+	<string>intentsExtension</string>
 	<key>NSAppTransportSecurity</key>
 	<dict>
 		<key>NSAllowsArbitraryLoads</key>