* Remove MessageInputBar files and change build settings
* Conditional imports to allow for builds without MessageInputBar
* Update Cardfile
* Specify Version in Cartfile for MessageInputBar
* Remove conditional imports in favor of Carthage for local development
* Additional `import MessageInputBar`
* Remove `MessageInputBar` from Cartfile.private
* Bump MessageInputBar version
* Add Cartfile
* Tweak build settings
* Specify import of MessageInputBar for Carthage
1. Set .swiftlint.yml for ChatExample
2. Fix Access Control for Explicit Top Level ACL Violation
3. Fix SwiftLint Warning: Colon Violation, Function Body Length
4. Fix Forced Unwrapping style
It seems as though when using a UINavigationController there is an issue with the rendering of an inputAccessoryView. This workaround creates a copy during the animation and then deletes it.
Added an `Avatar` property to the `AvatarView`
Replaced the `imageView` in the `MessagesCollectionViewCell` with the `AvatarView`
Moved the `Avatar.playground` to the example project so users can play around and learn it capabilities.
Updated the example project and abstracted the `sampleData` to its own file.
Updated the organization for the project to `MessageKit` instead of `Hex bits`