New Relic iOS Library Installed by Insertable

1. Added NewRelicAgent.framework files.
2. Linked NewRelicAgent.framework & System Frameworks to .xcodeproj.
3. Added '#import <NewRelicAgent/NewRelic.h>' & '[NewRelicAgent startWithApplicationToken:@"AA4e6d0fe83b01206f1785ffc92bf21bc404c105d0"]' to AppDelegate.