Fixes (including the umbrella header) and enhancements
1.11.3
- fix: resolve #234: Extra data is not attached to message-like payloads under body.message.extra data field.
- fix: resolve #235: Fix framework's modulemap.
- chore: resolve #236: Consolidate info.plist-s of multiple targets.
- chore: resolve #237: Clean-up the framework's umbrella header.
- chore: resolve #238: Clean-up the framework's podspec.
- docs: resolve #233: Create example of integrating Rollbar-iOS with ObjC iOS app via Carthage