* Migrate to SPM for dependencies

* Remove Carthage references and files
* Add Swift Package Dependencies for push-notifications-swift, NotificationBanner and ForemWebView-ios
* Amend ViewController.swift so project builds
	* Change import statement for NotificationBanner to NotificationBannerSwift
	* Add missing protocol requirements of ForemWebViewDelegate

* Update README

* Remove carthage commands from travis.yml

* Undo development_team change

* Add NSPhotoLibraryUsageDescription to info.plist to allow users to attach images and videos

* Removed Carthage actions from ci.yml